Lewis Base Assisted Lithium Br ønsted Base Catalysis: A New Entry for Catalytic Asymmetric Synthesis of β2,2-Amino Acids.
Lewis Base Assisted Lithium Brønsted Base Catalysis: A New Entry for Catalytic Asymmetric Synthesis of β2,2-Amino Acids.
Chem Pharm Bull (Tokyo). 2019 Jul 25;:
Authors: Amemiya F, Noda H, Shibasaki M
Abstract
A new catalytic system comprising chiral Ag complex and Li aryloxide/bisphosphine oxide is developed for the synthesis of β2,2-amino acids via direct asymmetric Mannich-type reaction of 4-subsituted isoxazolidin-5-ones. The Mannich adduct is a direct precursor of β-peptidic compounds otherwise difficult to obtain.
PMID: 31341115 [PubMed - as supplied by publisher]
Source: Chemical and Pharmaceutical Bulletin - Category: Drugs & Pharmacology Authors: Amemiya F, Noda H, Shibasaki M Tags: Chem Pharm Bull (Tokyo) Source Type: research