Ultrasound-promoted selective perfluoroalkylation on the desired position of organic molecules
作者:Tomoya Kitazume、Nobuo Ishikawa
DOI:10.1021/ja00304a026
日期:1985.9
Reaction d'halogenopolyfluoroalcanes et de poudre de zinc avec divers aldehydes, cetones, derives du styrene et du propene. Induction asymetrique avec des enamines optiquement actives en presence de poudre de zinc et CpTiCl 2
反应 d'halogenopolyfluoroalcanes et de poudre de 锌 avec divers 醛,丙酮,衍生苯乙烯和丙烯。感应不对称 avec des enamines optiquement actives en poudre de Zinc et CpTiCl 2
TRIFLUOROMETHYLATION OF CARBONYL COMPOUNDS WITH TRIFLUOROMETHYLZINC IODIDE UNDER ULTRASONIC IRRADIATION
作者:Tomoya Kitazume、Nobuo Ishikawa
DOI:10.1246/cl.1981.1679
日期:1981.12.5
The trifluoromethylation of carbonylcompounds with trifluoromethylzinc iodide, prepared from trifluoromethyl iodide with ultrasonically dispersed zinc, smoothly proceeded to give corresponding α-trifluoromethyl carbinols in good yields.
Preparation of trifluoromethylated allylic alcohols from trifluoroacetaldehyde and organometallic compounds
作者:Nobuo Ishikawa、Gyu Koh Moon、Tomoya Kitazume、Kwon Choi Sam
DOI:10.1016/s0022-1139(00)83162-0
日期:1984.4
A number of allylic alcohols bearing a trifluoromethyl group at the α- or γ-position, and α-trifluoromethylated γ-enols and -ynols were prepared by the reaction of trifluoroacetaldehyde with a variety of organometalliccompounds. Most of the Reformatsky- or Grignard-type reactions required promotion by ultrasonic irradiation.