Synthesis of 3-Hydroxypyrimidine-2,4-diones. Addition of Anilines to Benzyloxy Isocyanate Synthons to Give<i>N</i>-Hydroxyureas
作者:Jeffrey L. Romine、Scott W. Martin、Nicholas A. Meanwell、James R. Epperson
DOI:10.1055/s-1994-25587
日期:——
A new method, the addition of N-benzyloxychloroformate to methyl anthranilate followed by base-catalyzed cyclization, has been employed to synthesize the N-hydroxyquinazolinedione 1 and heterocyclic derivatives. N-Benzyloxycarbonylimidazole is a useful synthon to prepare N-hydroxyureas.