Flexible and Modular Syntheses of Enantiopure 5-cis-Substituted Prolinamines from l-Pyroglutamic Acid
摘要:
A wide range (25 examples) of 5-cis-substituted prolinamines is prepared in five to ten steps starting from cheap L-pyroglutamic acid. Three routes, differing mainly in the order of introduction of the substituents at the 5-cis position, the pyrrolidine nitrogen atom, and the exocyclic amino function, are successfully developed.
(2<i>S</i>,5<i>R</i>)-2-Methylaminomethyl-1-methyl-5-phenylpyrrolidine, a chiral diamine ligand for copper(<scp>ii</scp>)-catalysed Henry reactions with superb enantiocontrol
作者:Dagmar Scharnagel、Felix Prause、Johannes Kaldun、Robert G. Haase、Matthias Breuning
DOI:10.1039/c4cc02429j
日期:——
Copper(ii)-complexes of a cis-2-aminomethyl-5-phenylpyrrolidine catalyse enantioselective Henry reactions with extraordinarily high stereocontrol.
铜(II)配合物与顺式-2-氨基甲基-5-苯基吡咯烷催化了具有极高立体控制性的对映选择性亨利反应。
Flexible and Modular Syntheses of Enantiopure 5-cis-Substituted Prolinamines from l-Pyroglutamic Acid
A wide range (25 examples) of 5-cis-substituted prolinamines is prepared in five to ten steps starting from cheap L-pyroglutamic acid. Three routes, differing mainly in the order of introduction of the substituents at the 5-cis position, the pyrrolidine nitrogen atom, and the exocyclic amino function, are successfully developed.