process for the preparation of 4 - phenyl - 2 (1h) - chinazolinoni possibly tetraidrogenati (100 - 5222)

摘要

A process for the production of 4-phenyl-2(1H)-quinazolinones and -4a,5,6,8a-tetrahydro-2(1H)-quinazolinones which comprises introducing the desired phenyl radical into a corresponding quinazolin-2,4(1H,3H)-dione by way of a Grignard reaction and hydrolysis of the resulting product.