Synthesis and Basicity of 4-(N,N-Dimethylamino)-2-arylquinazolines
作者:Wojciech Zielinski、Agnieszka Kudelko、Elizabeth M. Holt
DOI:10.3987/com-96-7416
日期:——
The reaction of substituted N-phenylbenzimidoyl chlorides with N,N-dimethylcynanamide in the presence of titanium tetrachloride has yielded seven 4-(N,N-dimethylamino)-2-arylquinazolines substituted on the phenyl ring with electron donating or withdrawing groups. pKa values have been determined for these compounds and analyzed in conjunction with the Hammett sigma constants to observe the influence of these phenyl substituents upon the basicity of 4-(N,N-dimethylamino)-2-arylquinazolines. The rho value, single crystal X-ray analysis and N-15-nmr spectra give evidence about the preferential site of protonation in such systems.
Direct acylamination of pyridine 1-oxide with N-phenylarenimidoyl chlorides and fluorides
作者:Rudolph A. Abramovitch、Jacek Pilski、Antoni Konitz、Piotr Tomasik
DOI:10.1021/jo00171a048
日期:1983.11
Kulkarni; Shah, Journal of the Indian Chemical Society, 1950, vol. 27, p. 111,114
作者:Kulkarni、Shah
DOI:——
日期:——
ABRAMOVITCH, R. A.;PILSKI, J.;KONITZ, A.;TOMASIK, P., J. ORG. CHEM., 1983, 48, N 23, 4391-4393
作者:ABRAMOVITCH, R. A.、PILSKI, J.、KONITZ, A.、TOMASIK, P.