Studies on quinazoline chemistry. 5.* Synthesis of 3,4-dihydroquinazolines with functional substituents at C-2 atom and their alkylation reactions
作者:E. V. Gromachevskaya、E. A. Kaigorodova、K. S. Pushkareva、G. D. Krapivin
DOI:10.1007/s10593-013-1163-y
日期:2013.1
4-dihydroquinazolines by the reaction of o-aminophenyldiphenylcarbinol (APC) with various nitriles. The reaction of APC with substituted 5-bromo-3-cyano-2(1H)-pyridones leads to the formation of derivatives of two products: 3,4-dihydroquinazolines and 4H-3,1-benzoxazines. The alkylation of 3,4-dihydroquinazolines using dimethyl sulfate proceeds through N,N-dimethylation. The structure of these products is a function