反应详情

A solution of 10 g. of 2-methyl-3-hydroxy-4-hydroxymethyl-5-vinylpyridine in 300 ml. of hot chloroform was treated with 100 g. of manganese dioxide. After 1/2 hour of stirring, the mixture was filtered and the filtrate was evaporated to dryness to give 2-methyl-3-hydroxy-4-formyl-5-vinylpyridine.

1. filtrationthe mixture was filtered
2. customthe filtrate was evaporated to dryness