The synthesis of 8-hydroxyquinazoline derivatives and their acid-base interactions
作者:Agnieszka Kudelko、Wojciech Zieliński
DOI:10.1002/jhet.5570410215
日期:2004.3
The reaction of N-(2-R1-oxyphenyl)benzimidoyl chlorides with cyanamide derivatives in the presence of titanium tetrachloride as a catalyst has yielded some new 4-amino-8-R1-oxy-2-phenylquinazolines. pKa values have been determined for these compounds and the influence of substituents at the basicity of the parent system has been discussed. Some investigations on the methyl-quinazolinyl ether cleavage