Senter TJ, O'Reilly MC, Chong KM, Sulikowski GA, Lindsley CW. A general, enantioselective synthesis of
N-alkyl terminal aziridines and C2-functionalized azetidines via organocatalysis.
Tetrahedron Lett 2015;
56:1276-1279. [PMID:
26834294 PMCID:
PMC4730893 DOI:
10.1016/j.tetlet.2015.01.140]
[Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A short, high-yielding protocol involving the enantioselective α-chlorination of aldehydes has been developed for the enantioselective synthesis of C2-functionalized aziridines and N-alkyl terminal azetidines from a common intermediate. This methodology allows for the rapid preparation of functionalized aziridines in 50–73% overall yields and 88–94% ee, and azetidines in 22–32% overall yields and 84–92% ee. Moreover, we developed a scalable and cost-effective route to the key organocatalyst (54% overall yield, >95% dr).
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