PROCESS FOR THE PRODUCTION OF 4-PHENYL-2(1H)-QUINAZOLINONES AND-TETRAHYDRO-2(1H)-QUINAZOLINONES

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.