A highly stereoselectivesynthesis of 1,3-butadienes and its higher enyl analogs has been developed through thermal dehydrative ring opening of cyclopropyl carbinols in dimethylsulphoxide.
1,5- and 1,9-Hydrogen atom abstractions. Photochemical strategies for radical cyclizations
作者:George A. Kraus、Yusheng Wu
DOI:10.1021/ja00048a057
日期:1992.10
In the context of developing new radicalcyclization methods, we examined the interception of the biradicals produced by the photolysis of α-keto esters.