Me3SiI-promoted reaction of salicylic aldehydes with ketones: a facile way to construct benzopyranic [2,3-b]ketals and spiroketals
作者:Feijun Wang、Mingliang Qu、Xi Lu、Feng Chen、Feng Chen、Min Shi
DOI:10.1039/c2cc32545d
日期:——
Me3SiI-promoted reaction of salicylic aldehydes with ketones via arylmethylation at the α-site of the carbonyl group and cyclodehydration of keto-diol provided a facile way to construct heteroannular ketals, furnishing benzopyranic [2,3-b]ketals and spiroketals in moderate to good yields.