An Exceptional Hydroboration of Substituted Fluoroolefins Providing Tertiary Alcohols
摘要:
[GRAPHICS]A rare hydroboration-oxidation providing 3 degrees -alcohols has been achieved in the case of 1,1,2-perfluoroalkyl(MI)ethylenes. The hydroboration of substituted perfluoroalkyl(aryl)ethylenes with dichloroborane reveals that the regioselectivity does not entirely depend on the electronics of the fluoroolefins.
Radical Alkenylation of α-Halo Carbonyl Compounds with Alkenylindiums
摘要:
Alkenylation reaction of alpha-halo carbonyl compounds with alkenylindiums proceeded via a radical process in the presence of triethylborane. Unactivated alkene moieties as well as a styryl group could be introduced by this method. The geometry of the carbon-carbon double bonds of the alkenylindiums was retained. Preparation of an alkenylindium via a hydroinclation of 1-alkyne followed by radical alkenylation established an efficient one-pot strategy.
Radical Allylation, Vinylation, Alkynylation, and Phenylation Reactions of α-Halo Carbonyl Compounds with Organoboron, Organogallium, and Organoindium Reagents
reactions of α-halo carbonyl compounds with alkenylindium proceeded via a radical process in the presence of triethylborane. Unactivated alkene moieties and styryl groups were introduced by this method. The carbon-carbon double bond geometry of the alkenylindiums was retained during the alkenylation. Preparation of an alkenylindium via a hydroindation of 1-alkyne and subsequent radical alkenylation established
PALLADIUM-CATALYZED CROSS-COUPLING REACTIONS BETWEEN ALLYL, VINYL OR ARYL HALIDE AND PERFLUOROALKYL IODIDE WITH ZINC AND ULTRASONIC IRRADIATION
作者:Tomoya Kitazume、Nobuo Ishikawa
DOI:10.1246/cl.1982.137
日期:1982.1.5
The reactions of perfluoroalkyl iodides with allyl, vinyl or arylhalides with ultrasonically dispersed zinc in the presence of palladium catalyst proceeded smoothly to give the corresponding allyl, vinyl or aryl perfluoroalkylides in a good yield.
Alkenylation reaction of alpha-halo carbonyl compounds with alkenylindiums proceeded via a radical process in the presence of triethylborane. Unactivated alkene moieties as well as a styryl group could be introduced by this method. The geometry of the carbon-carbon double bonds of the alkenylindiums was retained. Preparation of an alkenylindium via a hydroinclation of 1-alkyne followed by radical alkenylation established an efficient one-pot strategy.
An Exceptional Hydroboration of Substituted Fluoroolefins Providing Tertiary Alcohols
作者:P. Veeraraghavan Ramachandran、Michael P. Jennings
DOI:10.1021/ol016779e
日期:2001.11.1
[GRAPHICS]A rare hydroboration-oxidation providing 3 degrees -alcohols has been achieved in the case of 1,1,2-perfluoroalkyl(MI)ethylenes. The hydroboration of substituted perfluoroalkyl(aryl)ethylenes with dichloroborane reveals that the regioselectivity does not entirely depend on the electronics of the fluoroolefins.