An improved synthesis of 1-phenylpentafluoropropenes
作者:Wojciech Dmowski
DOI:10.1016/s0022-1139(00)82298-8
日期:1981.7
1-Phenylpentafluoropropene and a number of its para- and ortho-substituted derivatives were prepared in high yields by reaction of hexafluoropropene with etheral solutions of corresponding phenylmagnesiumbromides in sealed glass tubes under autogenous pressure. The products were obtained as mixtures of the Z and E isomers, which ratios varied from 1/2 to 1/6 in favour of the E forms. 19F n.m.r. and
通过使六氟丙烯与相应的苯基溴化镁的醚溶液在自生压力下反应,可高收率地制备1-苯基五氟丙烯及其许多对位和邻位取代衍生物。获得的产物为Z和E异构体的混合物,其比率从1/2到1/6变化,有利于E形式。报道了1-苯基五氟丙烯的19 F nmr和ir光谱以及bp。
Palladium catalyzed coupling of F-cinyl zinc reagents with aryl iodides. An improved synthesis of α,β,β-trifluorostyrenes and the stereospecific preparation of 1-phenyl-F-propenes
作者:Pamela L. Heinze、Donald J. Burton
DOI:10.1016/s0022-1139(00)85092-7
日期:1986.2
provides a practical high yield route to α,β,β- trifluorostyrenes. Ortho, meta, and para substituted aryl iodides all work equally well. Similar coupling with - and -1-iodo--propenes outlines the first stereospecific preparative route to 1-aryl--olefins. This approach provides a rapid, easily scaled-up synthesis a one pot procedure to these valuable styrenes from commercially available precursors without
Nucleophilic reactions of fluoroolefins. VI. Reactions of 1-phenylpentafluoropropene with lithium aluminium hydride. Regio- and stereoselective substitution of vinylic fluorines by hydrogen
作者:Wojciech Dmowski
DOI:10.1016/s0022-1139(00)82327-1
日期:1985.9
1-Phenylpentafluoropropene reacted readily with lithiumaluminiumhydride in glyme to give products of the displacement of vinylic fluorine atoms by hydrogen. In the temperature range between −20°C and −10°C, the substitution of one vinylic fluorine occurred, either at carbon C-1 or C-2, to give predominantly monohydrofluoroalkenes and while at 20° . 97% conversion to 1,2-dihydrofluoroalkenes took
METHOD FOR PRODUCING SUBSTITUTED FLUORINE-CONTAINING OLEFIN
申请人:Nagai Takabumi
公开号:US20120330072A1
公开(公告)日:2012-12-27
This invention relates to a method of reacting fluoroolefin with an organic magnesium compound in the presence of a catalyst comprising nickel or palladium so as to efficiently produce fluoroolefin, such as TFE, in which a fluorine (F) atom or atoms bonded to the sp
2
hybridized carbon atom are substituted with an organic group.
PREPARATION METHOD FOR FLUORINE-CONTAINING OLEFINS HAVING ORGANIC-GROUP SUBSTITUENTS
申请人:Nagai Takabumi
公开号:US20130324757A1
公开(公告)日:2013-12-05
An object of the present invention is to provide a method that enables the easy and efficient (high yield, high selectivity, low cost) preparation of a fluorine-containing olefin substituted with an organic group or groups from a fluorine-containing olefin.
[Solution] The method for preparing a fluorine-containing olefin substituted with an organic group or groups, the method comprising a step of reacting a fluorine-containing olefin with an organic boron compound in the presence of an organic transition metal catalyst containing at least one transition metal selected from the group consisting of nickel, palladium, platinum, rhodium, ruthenium, and cobalt.