Stereoselectivity in the formation and radical reduction of cyclic bromoacetals, key intermediates for the synthesis of δ-hydroxy- and ε-hydroxy-α-methylcarboxylic acid esters
作者:Hajime Nagano、Ayako Mikami、Tomoko Yajima
DOI:10.1016/s0040-4039(03)01738-6
日期:2003.9
We report the stereoselectivity in the formation and radical reduction of six- and seven-membered cyclic bromoacetals. The oxidative ring cleavage of the resulting acetals gave the corresponding acyclic δ-hydroxy- and ε-hydroxy-α-methylcarboxylic acid esters.
我们报告了六元和七元环状溴缩醛的形成和自由基还原中的立体选择性。所得缩醛的氧化环裂解得到相应的无环δ-羟基-和ε-羟基-α-甲基羧酸酯。