Gold-Catalyzed Cyclization of N-Alkynyl Carbamates

Abstract

Six different N-alkynyl carbamates containing Boc groups were prepared. Their gold(I)-catalyzed cyclization to ­oxazolinones proceeded radily at room temperature or even lower temperatures.

alkynes - carbamates - gold catalysis - iodonium salts - oxazolinones

References and Notes

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CCDC 638182 (2b) contains the supplementary crystallographic data for this paper. These data can be obtained online free of charge [or from the Cambridge Crystallographic Data Centre, 12, Union Road, Cambridge CB2 1EZ, UK; fax: [phone]; or [e-mail]].