Ahluwalia, V. K.; Mittal, Bina; Mehta, Vilmal D., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1988, vol. 27, # 1-12, p. 179 - 181
Desai; Mavani, Proceedings - Indian Academy of Sciences, Section A, 1947, vol. 25, p. 353,356
作者:Desai、Mavani
DOI:——
日期:——
Chakravarti, Journal of the Indian Chemical Society, 1931, vol. 8, p. 407
作者:Chakravarti
DOI:——
日期:——
Desai; Mavani, Proceedings - Indian Academy of Sciences, Section A, 1947, # 25, p. 353,356
作者:Desai、Mavani
DOI:——
日期:——
Succinimide-N-sulfonic acid catalyzed synthesis of bis(indolyl)methane and coumarin derivatives under mild conditions
作者:Farhad Shirini、Nader Ghaffari Khaligh
DOI:10.1016/s1872-2067(12)60669-x
日期:2013.10
A mild and simple procedure is described for the synthesis of bis(indolyl)methane and coumarin derivatives using succinimide-N-sulfonic acid as an efficient, cheap, and reusable catalyst under mild conditions. (C) 2013, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
Ultrasound-assisted one-pot synthesis of substituted coumarins catalyzed by poly(4-vinylpyridinium) hydrogen sulfate as an efficient and reusable solid acid catalyst
作者:Nader Ghaffari Khaligh
DOI:10.1016/j.ultsonch.2013.01.001
日期:2013.7
Poly(4-vinylpyridinium) hydrogen sulfate solid acid was found to be efficient catalyst for synthesis of substituted coumarins via Pechmann reaction using ultrasound irradiation at room temperature and neat condition in high yields with short reaction times. This methodology offers momentous improvements over various options for the synthesis of coumarins with regard to yield of products, simplicity in operation and green aspects by avoiding toxic catalysts and solvents. Further, the catalyst can be reused and recovered for several times. (C) 2013 Elsevier B.V. All rights reserved.