Sirvent A, Foubelo F, Yus M. Stereoselective Synthesis of δ- and ε-Amino Ketone Derivatives from
N-
tert-Butanesulfinyl Aldimines and Functionalized Organolithium Compounds.
Molecules 2021;
26:molecules26216503. [PMID:
34770911 PMCID:
PMC8587840 DOI:
10.3390/molecules26216503]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 11/25/2022] Open
Abstract
The addition of functionalized organolithium compounds derived from 5-chloro-2-methoxy-1-pentene and 6-chloro-2-methoxy-1-hexene to N-tert-butanesulfinyl aldimines imines, and a subsequent hydrolysis of the enol ether moiety, yielded different δ- and ε-amino ketone derivatives, respectively, in moderate yields and diastereoselectivities. The application of these compounds in organic synthesis was demonstrated by the preparation of 2-substituted 6-methylpiperidines in a stereoselective manner, among them natural alkaloids (+)- and (−)-isosolenopsin A.
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