Formal asymmetric synthesis of (2S,4R)-4-hydroxypipecolic acid via Co(III)(salen)-catalyzed two stereocentered HKR of racemic azido epoxide

TitleFormal asymmetric synthesis of (2S,4R)-4-hydroxypipecolic acid via Co(III)(salen)-catalyzed two stereocentered HKR of racemic azido epoxide
Publication TypeJournal Article
Year of Publication2015
AuthorsKamble, RB, Gadre, SHaribhau, Suryavanshi, GM
JournalTetrahedron Letters
Volume56
Issue10
Pagination1263-1265
Date PublishedMAR
ISSN0040-4039
KeywordsAzido epoxide, Hydrolytic kinetic resolution, lodocyclization, Piperidine
Abstract

An efficient formal synthesis of (2S,4R)-4-hydroxypipecolic acid has been achieved in high optical purity (99% ee) from readily available benzaldehyde. The strategy employs an iodine-induced intramolecular cyclization of a carbonate and Co-catalyzed Hydrolytic Kinetic Resolution (HKR) of two stereocentered racemic azido epoxide as the key reactions to construct chiral 1,3-amino alcohol functionality. (C) 2015 Elsevier Ltd. All rights reserved.

DOI10.1016/j.tetlet.2015.01.113
Type of Journal (Indian or Foreign)

Foreign

Impact Factor (IF)2.347
Divison category: 
Chemical Engineering & Process Development