The condensation of methyl trifluoropyruvate with carbonyl compounds
作者:A. S. Golubev、M. V. Galakhov、A. F. Kolomiets、A. V. Fokin
DOI:10.1007/bf00957801
日期:1989.9
GOLUBEV, A. S.;GALAXOV, M. V.;KOLOMIETS, A. F.;FOKIN, A. V., IZV. AN CCCP. CEP. XIM.,(1989) N, S. 2127-2130
作者:GOLUBEV, A. S.、GALAXOV, M. V.、KOLOMIETS, A. F.、FOKIN, A. V.
DOI:——
日期:——
Novel and Convenient Aldolization of Methyl 3,3,3-Trifluoropyruvate Using Enamines Instead of Ketones
作者:Oldřich Paleta、Jiří Paleček
DOI:10.1055/s-2004-815954
日期:——
Piperidine enamines derived from acetone, acetophenone, cyclopentanone and cyclohexanone react easily in minutes with methyl 3,3,3-trifluoropyruvate (1) to afford products of the aldol condensation in high yields at room temperature, which is in contrast to the direct aldolization of 1 with the ketones.
A convenient two-step synthesis of 4-CF3-(2H)-pyridazin-3-ones starting from methyl 3,3,3-trifluoropyruvate (MeTFP) and carbonyl compounds has been elaborated. As a result, a set of various 4-CF3-(2H)-pyridazin-3-ones was obtained. The scope and limitations of the methodology is defined.