PROCESS FOR THE PRODUCTION OF 1-ALKENYL ISOCYANATES
1440774 1-Alkenyl isocyanates BASF AG 26 Sept 1973 [27 Sept 1972] 45074/73 Addition to 1301936 Heading C2C 1-Alkenyl isocyanates of the formula wherein the R<SP>1</SP> groups are independently hydrogen atoms or alkyl, cycloalkyl, aralkyl or aryl radicals, or two of them complete carbocyclic rings, are obtained by thermal cleavage of N- (1-alkenyl)-carbamyl halides of the formula wherein X is a halogen atom and R<SP>3</SP> is a cycloaliphatic or aromatic radical or a radical of the formula R<SP>4</SP> and R<SP>5</SP> being independently aliphatic or aromatic radicals provided that R<SP>4</SP> may alternatively be a hydrogen atom when R<SP>5</SP> is an aromatic radical.