反应详情

Starting from 7-hydroxy-2-methyl-3,4-dihydro-2H-1-benzopyrane, using 1-chloro-2,3-epoxypropane reagent and following the process of example 9 (b), 1,2-epoxy-3-(2-methyl-3,4-dihydro-2H-1-benzopyrane-7-yloxy)-propane was obtained (m.p. 67°-69° C.).