[EN] SYNTHESIS OF FLUORINATED OLEFINS FROM FLUORINATED ALCOHOLS<br/>[FR] SYNTHÈSE D'OLÉFINES FLUORÉES À PARTIR D'ALCOOLS FLUORÉS
申请人:DU PONT
公开号:WO2011090734A1
公开(公告)日:2011-07-28
Disclosed is a process for producing a hydrofluoroalkene, RfCF=CH2 comprising contacting a hydrofluoroalkanol of structure RfCF2CH2OH, with a lewis acid to produce a mixture, diluting said mixture with a solvent to produce a solvent mixture, contacting the solvent mixture with a reactive metal, heating the solvent mixture and reactive metal for a sufficient amount of time to produce a hydrofluoroalkene, and condensing and collecting the volatile products comprising the hydrofluoroalkene, wherein Rf is F, or a fluorine-substituted alkyl group.
[EN] PROCESS FOR PREPARING FLUORINE-CONTAINING OLEFIN<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UNE OLÉFINE CONTENANT DU FLUOR
申请人:DAIKIN IND LTD
公开号:WO2010087465A1
公开(公告)日:2010-08-05
The present invention provides a process for preparing a fluorine-containing olefin represented by Formula (2): R1CF=CH(R2) wherein R1 is F, H, F(CF2)n-(n is an integer ranging from 1 to 10) or H(CF2)m- (m is an integer ranging from 1 to 10) and R2 is H, F(CF2)n- (n is an integer ranging from 1 to 10) or H(CF2)m- (m is an integer ranging from 1 to 10), the process including a step of reacting a fluorine-containing alcohol represented by Formula (1): R1CF2CH(R2)OH, wherein R1 and R2are the same as above, with a reducing gas in the presence of a specific metal oxide. According to the process of the invention, a desired fluorine-containing olefin can be produced with high selectivity in a single reaction step using a fluorine-containing alcohol as a raw material.
SYNTHESIS OF FLUORINATED OLEFINS FROM FLUORINATED ALCOHOLS
申请人:Stepanov Andrei Aleksandrovich
公开号:US20130197280A1
公开(公告)日:2013-08-01
Disclosed is a process for producing a hydrofluoroalkene, R
f
CF═CH
2
comprising contacting a hydrofluoroalkanol of structure R
f
CF
2
CH
2
OH, with a lewis acid to produce a mixture, diluting said mixture with a solvent to produce a solvent mixture, contacting the solvent mixture with a reactive metal, heating the solvent mixture and reactive metal for a sufficient amount of time to produce a hydrofluoroalkene, and condensing and collecting the volatile products comprising the hydrofluoroalkene, wherein R
f
is F, or a fluorine-substituted alkyl group.