successfully established for the synthesis of ketone-substituted indolesbearing 3-methylthioether moiety. The new synthetic approach featured metal-free oxidation and methylthiolation of alcohol-containing indoles, in which new C–S bond and CO bond were formed simultaneously using dimethyl sulfoxide as the sulfur source under the Swern oxidation conditions. The methylthiolation reaction provides a simple and
Stereoselective synthesis of oxazino[4,3-a]indoles employing the oxa-Pictet–Spengler reaction of indoles bearing N-tethered vinylogous carbonate
作者:Santosh J. Gharpure、A. M. Sathiyanarayanan
DOI:10.1039/c0cc05558a
日期:——
A one-pot, sequential 2,3-bis-functionalization of indoles bearing N-tethered vinylogous carbonates employing an intramolecular oxa-PictetâSpengler reaction followed by electrophilic substitution is developed for the stereoselective synthesis of oxazino[4,3-a]indoles.