反应详情

A mixture of 3-bromo-7-chloro-4-(4-fluorophenyl)-2,2-dimethyl-2H-chromen (a compound obtained in Reference Example 8(1); 220 mg) and tributyl(vinyl)tin (405 μL) were treated in the same manner as Reference Example 11(1) to give the titled compound (144 mg) as a pale yellow powder.

1. customobtained in Reference Example 8(1)