Asymmetry in the boronic acid Mannich reaction: diastereocontrolled addition to chiral iminium species derived from aldehydes and (S)-5-phenylmorpholin-2-one
摘要:
(S)-5-苯基吗啉-2-酮†和一系列脂肪醛形成手性亚氨基中间体,与 2-呋喃硼酸发生非对映选择性曼尼希反应。由主要加合物 2g 生成的甲基化衍生物 4 的单晶 X 射线分析证实了反应的立体化学过程。
Chirally templated boronic acid Mannich reaction in the synthesis of optically active α-amino acids
作者:Gordon S. Currie、Michael G. B. Drew、Laurence M. Harwood、David J. Hughes、Richard W. A. Luke、Richard J. Vickers
DOI:10.1039/b003067h
日期:——
Adducts from diastereoselective Mannich-type reactions of aldehydes, 2-furylboronic acid and the chiral amine template (S)-5-phenylmorpholin-2-one, have been used in the synthesis of a series of enantiomerically pure D-α-amino acids.
Asymmetry in the boronic acid Mannich reaction: diastereocontrolled addition to chiral iminium species derived from aldehydes and (S)-5-phenylmorpholin-2-one
作者:Laurence M. Harwood、Gordon S. Currie、Michael G. B. Drew、Richard W. A. Luke
DOI:10.1039/cc9960001953
日期:——
(S)-5-Phenylmorpholin-2-one† and a range of aliphatic aldehydes form chiral iminium intermediates which undergo diastereoselective Mannich reactions with 2-furylboronic acid. Single crystal X-ray analysis of methylated derivative 4 derived from major adduct 2g confirms the stereochemical course of the reaction.
(S)-5-苯基吗啉-2-酮†和一系列脂肪醛形成手性亚氨基中间体,与 2-呋喃硼酸发生非对映选择性曼尼希反应。由主要加合物 2g 生成的甲基化衍生物 4 的单晶 X 射线分析证实了反应的立体化学过程。