HRID268120

反应详情

EQUATION

反应方程式

HRID 268120 的结构方程式

PROCEDURE

实验过程

Ethyl 5,5-dimethyl-3-oxo-tetrahydrothiophene-2-carboxylate was reacted with 5-n-pentyl resorcinol following a procedure similar to that of Example 3-C to produce 1,2-dihydro-2,2-dimethyl-9-hydroxy-7-n-pentyl-4-oxo-4H-thieno-[2,3-c][1] benzopyran in a 72.5% yield, m.p. 203°-206°C.