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One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]

The one-pot four-component reaction of benzohydrazide (2-picolinohydrazide), acetylenedicarboxylate, isatins and malononitrile (ethyl cyanoacetate) with triethylamine as base catalyst afforded functionalized 1-benzamidospiro[indoline-3,4'-pyridines] in good yields. (1)H NMR spectra indicated th...

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Detalles Bibliográficos
Autores principales: Wang, Chao, Jiang, Yan-Hong, Yan, Chao-Guo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4273213/
https://www.ncbi.nlm.nih.gov/pubmed/25550730
http://dx.doi.org/10.3762/bjoc.10.281
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author Wang, Chao
Jiang, Yan-Hong
Yan, Chao-Guo
author_facet Wang, Chao
Jiang, Yan-Hong
Yan, Chao-Guo
author_sort Wang, Chao
collection PubMed
description The one-pot four-component reaction of benzohydrazide (2-picolinohydrazide), acetylenedicarboxylate, isatins and malononitrile (ethyl cyanoacetate) with triethylamine as base catalyst afforded functionalized 1-benzamidospiro[indoline-3,4'-pyridines] in good yields. (1)H NMR spectra indicated that an equilibrium of cis/trans-conformations exist in the obtained products.
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spelling pubmed-42732132014-12-30 One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines] Wang, Chao Jiang, Yan-Hong Yan, Chao-Guo Beilstein J Org Chem Full Research Paper The one-pot four-component reaction of benzohydrazide (2-picolinohydrazide), acetylenedicarboxylate, isatins and malononitrile (ethyl cyanoacetate) with triethylamine as base catalyst afforded functionalized 1-benzamidospiro[indoline-3,4'-pyridines] in good yields. (1)H NMR spectra indicated that an equilibrium of cis/trans-conformations exist in the obtained products. Beilstein-Institut 2014-11-14 /pmc/articles/PMC4273213/ /pubmed/25550730 http://dx.doi.org/10.3762/bjoc.10.281 Text en Copyright © 2014, Wang et al. https://creativecommons.org/licenses/by/2.0https://www.beilstein-journals.org/bjoc/termsThis is an Open Access article under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The license is subject to the Beilstein Journal of Organic Chemistry terms and conditions: (https://www.beilstein-journals.org/bjoc/terms)
spellingShingle Full Research Paper
Wang, Chao
Jiang, Yan-Hong
Yan, Chao-Guo
One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
title One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
title_full One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
title_fullStr One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
title_full_unstemmed One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
title_short One-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
title_sort one-pot four-component reaction for convenient synthesis of functionalized 1-benzamidospiro[indoline-3,4'-pyridines]
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4273213/
https://www.ncbi.nlm.nih.gov/pubmed/25550730
http://dx.doi.org/10.3762/bjoc.10.281
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