The Mitsunobu reaction of ortho-ethers of secondary benzylic alcohols. Concise enantioselective synthesis of a key intermediate of the novel β-adrenergic receptor antagonist MY336-a
作者:Teodoro S. Kaufman
DOI:10.1016/0040-4039(96)01122-7
日期:1996.7
Chiral secondarybenzylicalcohols bearing an ortho-alkoxy substituent suffer ring-assisted racemization during the Mitsunobureaction; however, their congeners bearing also a 3-substituent undergo virtually complete Mitsunobu inversion. A conciseenantioselectivesynthesis of a keyintermediate of the β-adrenergicreceptorantagonistMY336-a was achieved exploiting this observation.