Asymmetric Synthesis of Substituted Prolines from δ-Amino β-Ketoesters. Methyl (2S,5R)-(+)-5-Phenylpyrrolidine-2-carboxylate
摘要:
Metal carbenoid chemistry is used to convert delta-amino delta-ketoesters into 5-substituted 3-oxo prolines, which expands the utility of this class of polyfunctionalized chiral building blocks.
Disulfonimide-Catalyzed Asymmetric Synthesis of δ-Amino-β-Keto Esters
作者:Benjamin List、Qinggang Wang
DOI:10.1055/s-0034-1379999
日期:——
A chiral disulfonimide-catalyzed asymmetric synthesis of -amino--keto esters via a vinylogous Mukaiyama-Mannich reaction of the Chan diene with N-Boc imines has been developed. The desired products were obtained in good to excellent yields and enantioselectivities.
Asymmetric Disulfonimide-Catalyzed Synthesis of δ-Amino-β-Ketoester Derivatives by Vinylogous Mukaiyama-Mannich Reactions
作者:Qinggang Wang、Manuel van Gemmeren、Benjamin List
DOI:10.1002/anie.201407532
日期:2014.12.1
organocatalytic asymmetricsynthesis of δ‐amino‐β‐ketoester derivatives has been developed. A chiral disulfonimide (DSI) serves as a highly efficient precatalyst for a vinylogous Mukaiyama–Mannich reaction of readily available dioxinone‐derived silyloxydienes with N‐Boc‐protected imines, delivering products in excellent yields and enantioselectivities. The synthetic utility of this reaction is illustrated
Asymmetric Synthesis of Substituted Prolines from δ-Amino β-Ketoesters. Methyl (2<i>S</i>,5<i>R</i>)-(+)-5-Phenylpyrrolidine-2-carboxylate
作者:Franklin A. Davis、Tianan Fang、Rajesh Goswami
DOI:10.1021/ol025831j
日期:2002.5.1
Metal carbenoid chemistry is used to convert delta-amino delta-ketoesters into 5-substituted 3-oxo prolines, which expands the utility of this class of polyfunctionalized chiral building blocks.