Diborane as a reducing agent - VI the novel reduction of indole-1-carboxaldehydes to 1-methyl- indoles, di(indolyimethyl) ethers and indolylmethyl indolines
作者:Kshetra M. Biswas、Rabindranath Dhara、Sumita Roy、Haimanti Mallik
DOI:10.1016/s0040-4020(01)98809-x
日期:——
ether() and the indolenine () as the minor products, except . This appears to be the first report on the formation of symmetric ethers in the borane/THF reduction of an oxygen function. The formation of and from and implies that electrophilicsubstitution takes place primarily at position 3 of 3-substitutedindoles, did not form the corresponding probably because of steric hindrance. These results are