Efficient synthesis of quinazoline derivatives catalyzed by flourinated alcohol
作者:Behrooz Maleki、Akram Vedad Mofrad
DOI:10.1007/s11164-016-2813-3
日期:2017.5
A facile and efficient protocol is reported for the synthesis of quinazolinederivatives via a one-pot multicomponent reaction of 2-amino-5-chlorobenzophenone, aromatic aldehydes and ammonium acetate using 1,1,1,3,3,3-hexafluoroisopropanol (HFIP). The use of HFIP both as the solvent and catalyst has significant advantages, including avoiding the use of an acidic catalyst and ease of product isolation
A new and facile CuCl2·2H2O-catalyzed one-pot three-component synthesis for quinazolines
作者:Syed Muhammad Saad、Khalid Mohammed Khan、Shahnaz Perveen、Wolfgang Voelter、Muhammad Taha
DOI:10.1007/s00706-015-1460-5
日期:2015.11
A new and facile CuCl2 center dot 2H(2)O-catalyzed one-pot three-component synthesis for quinazolines has been developed. A mixture of readily available 2-amino-5-chlorobenzophenones, substituted benzaldehydes, ammonium acetate, and CuCl2 center dot 2H(2)O in ethanol was refluxed altogether to afford the desired products in quantitative yields without any purification requirements. Structures of the products were confirmed by H-1 NMR and EI-MS. A plausible reaction mechanism is also discussed.[GRAPHICS].
KEMPTER, G.;LEHM, H. -U.;PLESSE, M.;BARTH, A., J. PRAKT. CHEM., 1982, 324, N 5, 841-846