Facile and Green Syntheses of 2-(N-Methylindole-3-carbonyl)-3-(N-methylpyrrol-2-yl)acrylonitriles and a Study of Their Antimicrobial Activities
摘要:
Facile and green syntheses of substituted-2-(N-methylindole-3-carbonyl)-3-(N-methyl pyrrol-2-yl) acrylonitriles 6a-d are being reported. L-Proline has been utilized as an efficient and ecofriendly catalyst in aqueous medium for Knoevenagel condensation of pyrrole-2-carboxyaldehyde (1) and its N-methyl derivative (2) with the active methylene compounds 3-cyanoacetylindoles 3a-d at room temperature to afford substituted-2-(1H-indole-3-carbonyl)-3-(1H-pyrrol-2-yl)acrylonitriles 4a-d and substituted-2-(1H-indole-3-carbonyl)-3-(N-methylpyrrol-2-yl) acrylonitriles 5a-d respectively. Subsequently these products were treated with dimethyl sulfate (DMS) in polythylene glycol (PEG)-600 as an efficient and green solvent to afford the corresponding substituted-2-(N-methylindole-3-carbonyl)-3-(N-methylpyrrol-2-yl)acrylonitriles 6a-d. The antibacterial and antifungal activities of 4a-d, 5a-d, and 6a-d have been studied. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource: Full experimental and spectral details.]
Facile and Green Syntheses of 2-(N-Methylindole-3-carbonyl)-3-(N-methylpyrrol-2-yl)acrylonitriles and a Study of Their Antimicrobial Activities
摘要:
Facile and green syntheses of substituted-2-(N-methylindole-3-carbonyl)-3-(N-methyl pyrrol-2-yl) acrylonitriles 6a-d are being reported. L-Proline has been utilized as an efficient and ecofriendly catalyst in aqueous medium for Knoevenagel condensation of pyrrole-2-carboxyaldehyde (1) and its N-methyl derivative (2) with the active methylene compounds 3-cyanoacetylindoles 3a-d at room temperature to afford substituted-2-(1H-indole-3-carbonyl)-3-(1H-pyrrol-2-yl)acrylonitriles 4a-d and substituted-2-(1H-indole-3-carbonyl)-3-(N-methylpyrrol-2-yl) acrylonitriles 5a-d respectively. Subsequently these products were treated with dimethyl sulfate (DMS) in polythylene glycol (PEG)-600 as an efficient and green solvent to afford the corresponding substituted-2-(N-methylindole-3-carbonyl)-3-(N-methylpyrrol-2-yl)acrylonitriles 6a-d. The antibacterial and antifungal activities of 4a-d, 5a-d, and 6a-d have been studied. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource: Full experimental and spectral details.]
Facile and Green Syntheses of 2-(N-Methylindole-3-carbonyl)-3-(N-methylpyrrol-2-yl)acrylonitriles and a Study of Their Antimicrobial Activities
作者:G. Thirupathi、M. Venkatanarayana、P. K. Dubey、Y. Bharathi Kumari
DOI:10.1080/00397911.2012.744055
日期:2013.11.17
Facile and green syntheses of substituted-2-(N-methylindole-3-carbonyl)-3-(N-methyl pyrrol-2-yl) acrylonitriles 6a-d are being reported. L-Proline has been utilized as an efficient and ecofriendly catalyst in aqueous medium for Knoevenagel condensation of pyrrole-2-carboxyaldehyde (1) and its N-methyl derivative (2) with the active methylene compounds 3-cyanoacetylindoles 3a-d at room temperature to afford substituted-2-(1H-indole-3-carbonyl)-3-(1H-pyrrol-2-yl)acrylonitriles 4a-d and substituted-2-(1H-indole-3-carbonyl)-3-(N-methylpyrrol-2-yl) acrylonitriles 5a-d respectively. Subsequently these products were treated with dimethyl sulfate (DMS) in polythylene glycol (PEG)-600 as an efficient and green solvent to afford the corresponding substituted-2-(N-methylindole-3-carbonyl)-3-(N-methylpyrrol-2-yl)acrylonitriles 6a-d. The antibacterial and antifungal activities of 4a-d, 5a-d, and 6a-d have been studied. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource: Full experimental and spectral details.]