Enol Tosylates as Viable Partners in Pd-Catalyzed Cross-Coupling Reactions
摘要:
Herein we demonstrate functionalized enol tosylates to be robust substrates that undergo Suzuki-Miyaura, Sonogashira, and Stille cross-coupling reactions to provide stereodefined trisubstituted unsaturated esters.
Stereoselective Enol Tosylation: Preparation of Trisubstituted α,β-Unsaturated Esters
作者:Jenny M. Baxter、Dietrich Steinhuebel、Michael Palucki、Ian W. Davies
DOI:10.1021/ol047854z
日期:2005.1.1
[Reaction: see text] The stereoselective preparation of (E)- or (Z)-trisubstituted alpha,beta-unsaturated esters in three steps from N-protected glycine is presented. The key step in the synthesis is the highly selective enol tosylation of gamma-amino beta-keto esters. The enol tosylates are stable, crystalline compounds that undergo smooth and effective Suzuki-Miyaura coupling reaction with a variety
Enol Tosylates as Viable Partners in Pd-Catalyzed Cross-Coupling Reactions
作者:Dietrich Steinhuebel、Jenny M. Baxter、Michael Palucki、Ian W. Davies
DOI:10.1021/jo051590s
日期:2005.11.1
Herein we demonstrate functionalized enol tosylates to be robust substrates that undergo Suzuki-Miyaura, Sonogashira, and Stille cross-coupling reactions to provide stereodefined trisubstituted unsaturated esters.