An efficient method for the construction of furo[2,3-b]indole derivatives 5 via an isocyanide-based multicomponent reaction (I-MCR) and a copper-catalyzed intramolecular Ullmann reaction sequence was described. This two-step sequence can be performed in a one-pot manner to produce the desired product 5 in moderate to good yield (up to 90%). (C) 2011 Published by Elsevier Ltd.
作者:Xu Zhu、Xiao-Ping Xu、Chang Sun、Tao Chen、Zhi-Liang Shen、Shun-Jun Ji
DOI:10.1016/j.tet.2011.05.101
日期:2011.8
An efficient method for the construction of furo[2,3-b]indole derivatives 5 via an isocyanide-based multicomponent reaction (I-MCR) and a copper-catalyzed intramolecular Ullmann reaction sequence was described. This two-step sequence can be performed in a one-pot manner to produce the desired product 5 in moderate to good yield (up to 90%). (C) 2011 Published by Elsevier Ltd.
One-pot Three-component Synthesis of Furan-based Heterocycles from Benzyl Halides
作者:Mallappa Beerappa、Kalegowda Shivashankar
DOI:10.1002/jhet.2806
日期:2017.7
An efficient and a novel approach for the synthesis of furochromene and furopyran scaffolds are described. Benzyl halides undergo oxidation in Kornblum conditions to give the corresponding aldehydes, which in turn undergo [4 + 1] cycloaddition reaction with isocyanide to afford the corresponding furanderivatives. The significant attraction of this protocol is simple procedure, mild reaction condition