Perfluoroalkylation of esters with perf luoroalkyllithiums occurs smoothly in ether at −78 °C, giving the corresponding perfluoroalkylketones in good yields.
酯与全氟烷基锂的全氟烷基化在 -78 °C 下在醚中顺利发生,以良好的产率得到相应的全氟烷基酮。
MOREAU P.; NAJI NAIMA; COMMEYRAS A., J. FLUOR. CHEM., 34,(1987) N 3-4, 421-441
作者:MOREAU P.、 NAJI NAIMA、 COMMEYRAS A.
DOI:——
日期:——
UNO HIDEMITSU; SHIRAISHI YASUKAZU; SIMOKAWA KAZUHIRO; SUZUKI HITOMI, CHEM. LETT.,(1987) N 6, 1153-1156
Preparation of Perfluoroalkyl Ketones by the Reaction of Perfluoroalkyllithiums with Esters
作者:Hidemitsu Uno、Yasukazu Shiraishi、Hitomi Suzuki
DOI:10.1246/bcsj.62.2636
日期:1989.8
A variety of esters react with perfluoroalkyllithiums in situ generated from perfluoroalkyl iodides and methyllithium to give perfluoroalkyl ketones in good yields. Perfluoroalkyllithiums add to α, β-unsaturated esters only in the 1,2-addition mode even in the presence of copper salt. Exception was observed in the reaction with maleates where perfluoroalkylated succinic esters and normal 1,2-addition
A stereoselective synthesis of γδ-unsaturated ketones possessing perfluoroalkyl groups by trifluoroborane etherate mediated 1,4-addition reaction of alkenyldiisopropoxyboranes to α,β-unsaturated ketones
作者:Ei-ichi Takada、Shoji Hara、Akira Suzuki
DOI:10.1016/s0040-4039(00)61600-3
日期:1993.10
A variety of γ,δ-unsaturated ketones (3,5, and 7) having perfluoroalkyl groups were prepared stereoselectively by the trifluoroborane etherate mediated 1,4-addition reaction of alkenyldiisopropoxyboranes (1) to α,β-unsaturatedketones substituted by perfluoroalkyl group (2,4, and 6). The undesired 1,2-addition of alkenyl groups or elimination of metal fluoride from the adducts could be avoided completely