Dehydration Reaction of Hydroxamic Acids with Unsaturated Ethers

Abstract
Dehydration reactions of hydroxamic acids with unsaturated ethers have been studied. The reaction of hydroxamic acids with ethoxyacetylene or methylketene diethylacetal led to the formation of corresponding isocyanates, along with ethyl acetate or ethyl propionate and ethanol, through the intermediate of addition compounds of hydroxamic acids and the dehydrating reagents.

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