Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives

Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectr...
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Gespeichert in:

Autor*in:	Brahma, Dulu [verfasserIn] Wary, Riu Riu [verfasserIn] Borgayary, Sudem [verfasserIn] Kalita, Pranjal [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane

Übergeordnetes Werk:	Enthalten in: Polyhedron - Amsterdam [u.a.] : Elsevier Science, 1982, 244
Übergeordnetes Werk:	volume:244

DOI / URN:	10.1016/j.poly.2023.116584

Katalog-ID:	ELV06368425X

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245	1	0	\|a Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
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520			\|a Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds.
650		4	\|a Phosphotungstic acid
650		4	\|a 3-Aminopropyltriethoxysilane
650		4	\|a Graphene oxide
650		4	\|a Heterogeneous catalyst
650		4	\|a Immobilization
650		4	\|a Bis(indolyl)methane
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matchkey_str	brahmaduluwaryriuriuborgayarysudemkalita:2023----:eeomnopopougtccdmoiieaierfegahnoieseeoeeuctlsfryt
hierarchy_sort_str	2023
bklnumber	35.00
publishDate	2023
allfields	10.1016/j.poly.2023.116584 doi (DE-627)ELV06368425X (ELSEVIER)S0277-5387(23)00306-6 DE-627 ger DE-627 rda eng 540 VZ 35.00 bkl Brahma, Dulu verfasserin aut Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds. Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane Wary, Riu Riu verfasserin aut Borgayary, Sudem verfasserin aut Kalita, Pranjal verfasserin (orcid)0000-0002-2279-9787 aut Enthalten in Polyhedron Amsterdam [u.a.] : Elsevier Science, 1982 244 Online-Ressource (DE-627)320402967 (DE-600)2000326-2 (DE-576)096704209 nnns volume:244 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.00 Chemie: Allgemeines VZ AR 244
spelling	10.1016/j.poly.2023.116584 doi (DE-627)ELV06368425X (ELSEVIER)S0277-5387(23)00306-6 DE-627 ger DE-627 rda eng 540 VZ 35.00 bkl Brahma, Dulu verfasserin aut Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds. Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane Wary, Riu Riu verfasserin aut Borgayary, Sudem verfasserin aut Kalita, Pranjal verfasserin (orcid)0000-0002-2279-9787 aut Enthalten in Polyhedron Amsterdam [u.a.] : Elsevier Science, 1982 244 Online-Ressource (DE-627)320402967 (DE-600)2000326-2 (DE-576)096704209 nnns volume:244 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.00 Chemie: Allgemeines VZ AR 244
allfields_unstemmed	10.1016/j.poly.2023.116584 doi (DE-627)ELV06368425X (ELSEVIER)S0277-5387(23)00306-6 DE-627 ger DE-627 rda eng 540 VZ 35.00 bkl Brahma, Dulu verfasserin aut Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds. Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane Wary, Riu Riu verfasserin aut Borgayary, Sudem verfasserin aut Kalita, Pranjal verfasserin (orcid)0000-0002-2279-9787 aut Enthalten in Polyhedron Amsterdam [u.a.] : Elsevier Science, 1982 244 Online-Ressource (DE-627)320402967 (DE-600)2000326-2 (DE-576)096704209 nnns volume:244 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.00 Chemie: Allgemeines VZ AR 244
allfieldsGer	10.1016/j.poly.2023.116584 doi (DE-627)ELV06368425X (ELSEVIER)S0277-5387(23)00306-6 DE-627 ger DE-627 rda eng 540 VZ 35.00 bkl Brahma, Dulu verfasserin aut Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds. Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane Wary, Riu Riu verfasserin aut Borgayary, Sudem verfasserin aut Kalita, Pranjal verfasserin (orcid)0000-0002-2279-9787 aut Enthalten in Polyhedron Amsterdam [u.a.] : Elsevier Science, 1982 244 Online-Ressource (DE-627)320402967 (DE-600)2000326-2 (DE-576)096704209 nnns volume:244 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.00 Chemie: Allgemeines VZ AR 244
allfieldsSound	10.1016/j.poly.2023.116584 doi (DE-627)ELV06368425X (ELSEVIER)S0277-5387(23)00306-6 DE-627 ger DE-627 rda eng 540 VZ 35.00 bkl Brahma, Dulu verfasserin aut Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives 2023 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds. Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane Wary, Riu Riu verfasserin aut Borgayary, Sudem verfasserin aut Kalita, Pranjal verfasserin (orcid)0000-0002-2279-9787 aut Enthalten in Polyhedron Amsterdam [u.a.] : Elsevier Science, 1982 244 Online-Ressource (DE-627)320402967 (DE-600)2000326-2 (DE-576)096704209 nnns volume:244 GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2088 GBV_ILN_2106 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 35.00 Chemie: Allgemeines VZ AR 244
language	English
source	Enthalten in Polyhedron 244 volume:244
sourceStr	Enthalten in Polyhedron 244 volume:244
format_phy_str_mv	Article
bklname	Chemie: Allgemeines
institution	findex.gbv.de
topic_facet	Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane
dewey-raw	540
isfreeaccess_bool	false
container_title	Polyhedron
authorswithroles_txt_mv	Brahma, Dulu @@aut@@ Wary, Riu Riu @@aut@@ Borgayary, Sudem @@aut@@ Kalita, Pranjal @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	320402967
dewey-sort	3540
id	ELV06368425X
language_de	englisch
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author	Brahma, Dulu
spellingShingle	Brahma, Dulu ddc 540 bkl 35.00 misc Phosphotungstic acid misc 3-Aminopropyltriethoxysilane misc Graphene oxide misc Heterogeneous catalyst misc Immobilization misc Bis(indolyl)methane Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
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topic_title	540 VZ 35.00 bkl Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives Phosphotungstic acid 3-Aminopropyltriethoxysilane Graphene oxide Heterogeneous catalyst Immobilization Bis(indolyl)methane
topic	ddc 540 bkl 35.00 misc Phosphotungstic acid misc 3-Aminopropyltriethoxysilane misc Graphene oxide misc Heterogeneous catalyst misc Immobilization misc Bis(indolyl)methane
topic_unstemmed	ddc 540 bkl 35.00 misc Phosphotungstic acid misc 3-Aminopropyltriethoxysilane misc Graphene oxide misc Heterogeneous catalyst misc Immobilization misc Bis(indolyl)methane
topic_browse	ddc 540 bkl 35.00 misc Phosphotungstic acid misc 3-Aminopropyltriethoxysilane misc Graphene oxide misc Heterogeneous catalyst misc Immobilization misc Bis(indolyl)methane
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title	Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
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title_full	Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
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author_browse	Brahma, Dulu Wary, Riu Riu Borgayary, Sudem Kalita, Pranjal
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title_sort	development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
title_auth	Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
abstract	Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds.
abstractGer	Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds.
abstract_unstemmed	Phosphotungstic acid was immobilized hydrothermally on the surface of 3-aminopropyltriethoxysilane-grafted graphene oxide (GO-N-PTA) and used as a heterogeneous solid acid catalyst for the synthesis of bis(indolyl)methane derivatives. X-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy, BET isotherm, FESEM with EDS and elemental mapping, FETEM, X-Ray photoelectron spectroscopy (XPS), Raman spectroscopy techniques were used to characterize the synthesized catalyst. The catalyst was found to be highly effective for the synthesis of bis(indolyl)methane derivative compounds with yields in the ranges of 94–96.5 % under the optimized reaction conditions. The catalyst was recycled upto 3rd cycle for a specific reaction, that produced 94.5% yield with marginal loss in yield compared to the fresh catalyst (96.5%) depicting the hetreogneiety and sustainability of the present GO-N-PTA catalyst. This study provides the development of sustainable heterogeneous GO-N-PTA catalyst towards the synthesis of highly pharmaceutically important bis(indolyl)methanes derivative compounds.
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title_short	Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives
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author2	Wary, Riu Riu Borgayary, Sudem Kalita, Pranjal
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doi_str	10.1016/j.poly.2023.116584
up_date	2024-07-06T19:53:03.250Z
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Development of phosphotungstic acid immobilized amine-grafted graphene oxide as heterogeneous catalyst for synthesis of bis(indolyl)methane derivatives

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