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- Title
Synthesis of Functionalized Azetidines through Chemoselective Zinc-Catalyzed Reduction of β-Lactams with Silanes.
- Authors
Alcaide, Benito; Almendros, Pedro; Aragoncillo, Cristina; Gómez ‐ Campillos, Gonzalo
- Abstract
An efficient method for the one-step conversion of β-lactams to their corresponding functionalized azetidines has been developed. This approach takes advantage of the selective reduction of the 2-azetidinone nucleus with hydrosilanes in the presence of a zinc-based catalyst. The methodology is tolerant towards sensitive groups such as allene, ester, and cyanohydrin moieties. In addition, the process allows the preparation of enantiopure azetidines without erosion of the stereochemical integrity. A catalytic cycle involving an azetidinium salt intermediate has been proposed.
- Subjects
HETEROCYCLIC compounds synthesis; AZETIDINE; CHEMOSELECTIVITY; LACTAMS; SILANE compounds; ORGANOCATALYSIS
- Publication
Advanced Synthesis & Catalysis, 2013, Vol 355, Issue 10, p2089
- ISSN
1615-4150
- Publication type
Article
- DOI
10.1002/adsc.201300320