Gold(I)-catalyzed sequential cycloisomerization/bis-addition of o-ethynylanilines: an efficient access to bis(indolyl)methanes and di(indolyl)indolin-2-ones
作者:C. Praveen、Y. Wilson Sagayaraj、P.T. Perumal
DOI:10.1016/j.tetlet.2008.11.086
日期:2009.2
An efficient synthesis of bis(indolyl)methanes and di(indolyl)indolin-2-ones has been developed by a sequential approach involving gold(I)-catalyzedcycloisomerization/bis-addition of o-ethynylanilines with various aldehydes and isatins, respectively. This methodology opens clean and synthetically competitive alternative to the already established procedures of the synthesis of bis(indolyl)methanes
An improved and practical synthesis of substituted quinolines and bis(indolyl)methanes was achieved under microwave condition using Zn(OTf)(2) as catalyst. The synthesized compounds have been screened for antimicrobial and antioxidant activities. (C) 2010 Elsevier Ltd. All rights reserved.
Kumar, T. Sathish; Kumar, D. Sathis; Krishnan, Venkata, Asian Journal of Chemistry, 2011, vol. 23, # 8, p. 3686 - 3690
作者:Kumar, T. Sathish、Kumar, D. Sathis、Krishnan, Venkata、Naveena、Ragini、Harani
DOI:——
日期:——
Efficient synthesis of 3-substituted indoles through a domino gold(I) chloride catalyzed cycloisomerization/C3-functionalization of 2-(alkynyl)anilines
作者:C. Praveen、K. Karthikeyan、P.T. Perumal
DOI:10.1016/j.tet.2009.09.019
日期:2009.11
An efficient synthesis of 3-substituted indoles by a sequential approach involving gold(I) chloride catalyzed cycloisomerization/bis-addition and conjugate addition of 2-(alkynyl)anilines has been accomplished. A variety of 2-(alkynyl)anilines, aldehydes, isatins and nitroolefins undergo this overall process in good to excellent yields. This methodology represents an effective alternative to the classical