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Letter

Convenient Method for the Preparation of Carbamates, Carbonates, and Thiocarbonates

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Mamoru Shimizu and Mikiko Sodeoka*

RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, 351-0198, Japan

Org. Lett., 2007, 9 (25), pp 5231–5234

DOI: 10.1021/ol7024108

Publication Date (Web): November 15, 2007

Section:

General Organic Chemistry

Abstract

A convenient, rapid, and efficient method for the preparation of carbamates from amines with 1-alkoxycarbonyl-3-nitro-1,2,4-triazole transfer reagents is reported. Reactions of newly synthesized stable crystalline reagents with alkyl amines were completed in a few minutes without any additional base, and highly pure carbamates were obtained without chromatographic purification. These highly active reagents are also useful for the selective protection of nucleobases and preparation of carbonates and thiocarbonates.

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History

Published In Issue December 06, 2007
Received October 3, 2007

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Letter

Convenient Method for the Preparation of Carbamates, Carbonates, and Thiocarbonates

Abstract

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