作者:Jae-Chul Jung、Ju-Cheun Kim、Oee-Sook Park
DOI:10.1080/00397910008087139
日期:2000.4
Concise and inexpensive methods for the preparation of 4-hydroxy-1-thiocoumarin and 2-methylthiochromone from 2-mercaptobenzoic acid are described, which should be readily amenable to large scale synthesis.