反应详情

By a similar reaction operation as in Starting Material Synthetic Example 1 using 4-oxochromane-7-carboxylic acid methyl ester (1.4 g) synthesized according to a known method and sodium borohydride (0.26 g), the objective 4-hydroxychromane-7-carboxylic acid methyl ester (1.5 g) was obtained as a colorless oil.

1. customsynthesized