41064-78-2Relevant articles and documents
Preparation of substituted semicarbazides from corresponding amines and hydrazines via phenyl carbamates
Hron, Rebecca,Jursic, Branko S.
supporting information, p. 1540 - 1543 (2014/03/21)
A simple synthetic procedure for the conversion of amines and hydrazines into substituted semicarbazides was developed. The initial condensation between the desired amine and phenyl chloroformate into phenyl carbamate is followed by the addition of hydrazine under basic conditions. The reaction is tolerable to a variety of functional groups, with mild conditions and high percent yields.
A Simple Synthesis of 2(3H)-Benzoxazolones using Phenyl Chloroformate
Maleski, Robert J.,Osborne, C. Edward,Cline, Sharon M.
, p. 1937 - 1939 (2007/10/02)
2(3H)-Benzoxazolones 3 can be prepared directly from the corresponding 2-aminophenols and phenyl chloroformate.The intermediate 2-hydroxy phenylcarbamates 2 are formed easily in aqueous alcohol solvent and these are converted rapidly to product, without their isolation, using one equivalent of sodium hydroxide.The synthesis accommodates a wide variety of substituents, including the easily hydrolyzed ethyl ester.
