New synthetic approaches to 6-thiophenoxysalicylates, 6-phenoxysalicylates and 1-hydroxy-9-xanthones
作者:Osmo E.O. Hormi、Leena Hirvela¯
DOI:10.1016/0040-4039(93)85071-4
日期:1993.10
A new two step synthetic route to 6-thiophenoxysalicylates and a three step route to 1-hydroxy-9-xanthones which permits the regioselective introduction of a methyl group into the 4-position is reported.
报道了新的两步合成路线为6-硫代苯氧基水杨酸酯和三步路线为1-羟基-9-氧杂蒽,其允许区域选择性地将甲基引入4-位。