Process for the preparation of acyl isocyanates

Organic compounds -- part of the class 532-570 series – Organic compounds – Containing -c-x-n=n-x- – wherein the x's may be the same or...

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560338, 560340, 560345, 560347, 560348, 560336, C07C24900

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active

053860578

ABSTRACT:
The invention concerns a process for the preparation of acyl isocyanates which consists of reacting oxalyl chloride with a salt selected from the group consisting of hydrohalides and sulphates of carboxamides and/or carbamates, unsubstituted on nitrogen, then heating the reaction mixture at a temperature between 30.degree. and 150.degree. C. The process is suitable for preparation of acyl isocyanates with excellent yields in easy to control operational conditions.

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