Title:
ヒドロフルオロエーテル類の製造法
Document Type and Number:
Japanese Patent JP4550458
Kind Code:
B2
Abstract:
Process for obtaining hydrofluoroethers of formula (I): A-(Rf)n0-CF(Rf1)-O-Rh wherein: n0 is zero or 1; Rf is a bivalent radical: C1-C20 (per)fluoroalkylene, optionally containing one or more oxygen atoms; -CFW'O-(Rf2)-CFW-, wherein W and W', equal or different, are F, CF3; Rf2 is a (per)fluoropolyoxyalkylene; Rf1 is F or a C1-C10 (per)fluoroalkyl or (per)fluorooxyalkyl radical; Rh is a C1-C20 linear, branched, saturated or unsaturated alkyl, or C7-C20 alkylaryl, A = F, (Rh2O)-CF(Rf4)-, -C(O)F, wherein Rh2, equal to or different from Rh, has the Rh meanings and Rf4, equal to or different from Rf1, has the Rf1 meanings; wherein a mono- or bifunctional carbonyl compound of formula (IV) : B-Rf-C(O)Rf1 B being F or -C(O)Rf4, Rf, Rf1 and Rf4 being as above, is reacted with at least one equivalent of a fluoroformate of formula (III) : R-OC(O)F wherein R = Rh or Rh2 as above defined; in the presence of an ion fluoride compound (catalyst) and of a dipolar aprotic organic compound, liquid and inert under the reaction conditions.
Inventors:
Walter Navarini
Marco Garimberti
Giovanni Fontana
Marco Garimberti
Giovanni Fontana
Application Number:
JP2004092681A
Publication Date:
September 22, 2010
Filing Date:
March 26, 2004
Export Citation:
Assignee:
Solvay Solexis S.p.A.
International Classes:
B01J27/12; C07C41/01; C07B61/00; C07C41/48; C07C43/12; C07C43/17; C07C43/315; C08G65/00; C08G65/332; C08G65/337
Domestic Patent References:
| JP6293687A | ||||
| JP790075A | ||||
| JP1045651A | ||||
| JP2000508655A | ||||
| JP2002506840A | ||||
| JP2002201152A |
Attorney, Agent or Firm:
Shintaro Nogawa