Ureas from N-Chloroamidines; An Aza-Analogous Hofmann Degradation

Article abstract of DOI:10.1055/s-1989-27280

N-Chlorination and subsequent treatment with alkali of suitably substituted benzamidines yields ureas with phenyl or alkyl migration.Under the same conditions, 2-iminopyrrolidine is converted into 2-oxohexahydropyrimidine with ring enlargement.