Synthesis of Isocoumarins and α-Pyrones via Electrophilic Cyclization
作者:Tuanli Yao、Richard C. Larock
DOI:10.1021/jo034308v
日期:2003.7.1
A variety of substituted isocoumarins and alpha-pyrones are readily prepared in excellent yields under very mild reaction conditions by the reaction of o-(1-alkynyl)benzoates and (Z)-2-alken-4-ynoates with ICI, I-2, PhSeCl, p-O2NC6H4SCl, and HI. This methodology accommodates various alkynyl esters and has been successfully extended to the synthesis of polycyclic aromatic and biaryl compounds.
Synthesis of isocoumarins and α-pyrones via iodocyclization
作者:Tuanli Yao、Richard C Larock
DOI:10.1016/s0040-4039(02)01731-8
日期:2002.10
A variety of 3-substituted 4-iodoisocoumarins and 6-substituted 5-iodo-2(2H)-pyranones are readily prepared in excellent yields under mild reaction conditions by the reaction of o-(l-alkynyl)benzoates and (Z)-2-alken-4-ynoates with ICI. (C) 2002 Published by Elsevier Science Ltd.