It has been found that carbamoylxanthates derived from secondary t-butyl amines are stable compounds which function as efficient sources of carbamoyl radicals. The carbamoylxanthates derived from t-butylbenzylamines can be efficiently transformed into 2-t- butylisoindolin-1-ones via an oxidative radical cyclization process. The carbamoylxanthates derived from Nt-butylamino olefins underwent the expected cyclization/xanthate-transfer ...