Halogenation Using Quatenary Ammonium Polyhaloides. IX. One-Step Syntheses of Acylureas and Carbamates from Amides by Use of Tetrabutylammonium Tribromide and DBU

DOI: 10.1246/bcsj.61.1401

Source and publish data:

Bulletin of the Chemical Society of Japan p. 1401 - 1403 (1988)

Update date:2022-08-02

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Authors:

Fujisaki, Shizuo

Tomiyasu, Kazushi

Nishida, Akiko

Kajigaeshi, Shoji

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Article abstract of DOI:10.1246/bcsj.61.1401

The reaction of amides with tetrabutylammonium tribromide (TBA Br3) (0.5 equiv) and DBU (one equiv) in dichloromethane at room temperature gave N-substituted acylureas in fairly good yields.In the presence of alcohols, the reaction of amides with TBA Br3 (one equiv) and DBU (two equiv) gave N-substituted carbamates.

Full text of DOI:10.1246/bcsj.61.1401

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