94563-08-3Relevant articles and documents
Thermolysis of Aryl Azides in Phenyl Isocyanate
Patel, Dalpat I.,Smalley, Robert K.
, p. 2587 - 2590 (2007/10/02)
Aryl azides (p-XC6H4N3) decompose in boiling phenyl isocyanate to give mainly 1-phenyl-3-phenylcarbamoyl-2-oxo-1,3-dihydrobenzimidazoles and azo-compounds.In some cases, however (X=Ac, CO2Me, or CN) work-up in methanol solution produces methyl N-arylcarbamates (p-XC6H4NHCO2Me) indicative of the formation of substituted isocyanates (p-XC6H4NCO) during thermolysis.A mechanistic rationale is offered.