Isobutylene → butyl tert-butylcarbamate

Participants

Reaction Conditions

Reaction Steps

A stirred mixture of 117 g of butyl carbamate, 5 g of butanol, 17 g of ®LEVATIT SPC-118 and 160 g of a mixture comprising 49 percent by weight of isobutene, 41.5 percent by weight of n-butenes and 9.5 percent by weight of butanes was heated to 70° C. in a stirred autoclave, and stirring was continued at this temperature for 5 hours. Thereafter, the catalyst was separated off and the mixture was distilled under reduced pressure. 149 g (86% of theory) of butyl N-tert.-butylcarbamate of boiling point 110°-111° C./20 mbar were obtained. No substantial amount of diisobutene was detected.

Provenance & Evidence