Synthesis of Tertiary α-Hydroxy Acids by Silylene Transfer to α-Keto Esters
摘要:
alpha-Keto esters can be converted into alpha-hydroxy acids in a single flask involving metal-catalyzed silylene transfer, 6 pi-electrocyclization, Ireland-Claisen rearrangement, and hydrolysis. This reaction sequence is stereoselective and tolerates alkyl- and aryl-substituted a-keto ester substrates as well as an alpha-imino ester.
Synthesis of Tertiary α-Hydroxy Acids by Silylene Transfer to α-Keto Esters
摘要:
alpha-Keto esters can be converted into alpha-hydroxy acids in a single flask involving metal-catalyzed silylene transfer, 6 pi-electrocyclization, Ireland-Claisen rearrangement, and hydrolysis. This reaction sequence is stereoselective and tolerates alkyl- and aryl-substituted a-keto ester substrates as well as an alpha-imino ester.