Invention Application
US20140357881A1 Transvinylation as a First Stage of Coupling Production of Vinyl Esters and Acetic Acid or Propionic Acid Reaction Products 有权
作为乙烯基酯和乙酸或丙酸反应产物的偶联生产的第一阶段的转乙烯化

  • Patent Title: Transvinylation as a First Stage of Coupling Production of Vinyl Esters and Acetic Acid or Propionic Acid Reaction Products
  • Patent Title (中): 作为乙烯基酯和乙酸或丙酸反应产物的偶联生产的第一阶段的转乙烯化
  • Application No.: US14372235
    Application Date: 2013-01-18
  • Publication No.: US20140357881A1
    Publication Date: 2014-12-04
  • Inventor: Leif JohnenHeinz Strutz
  • Applicant: Oxea GmbH
  • Priority: DE102012002274.3 20120206
  • International Application: PCT/EP2013/000142 WO 20130118
  • Main IPC: C07C67/333
  • IPC: C07C67/333
Transvinylation as a First Stage of Coupling Production of Vinyl Esters and Acetic Acid or Propionic Acid Reaction Products
Abstract:
Process for coproduction of a vinyl ester of the formula R—C(O)O—CH═CH by transvinylation reaction of a carboxylic acid of the formula R—C(O)OH with a transvinylating reagent of the formula R1—C(O)O CH═CH2, characterized in that (a) the transvinylation reaction is conducted continuously at a temperature of 90 to 160° C. and at a pressure of 0.5 to 15 MPa without withdrawal of a reactant in the presence of a transition meta/catalyst containing at least one transition metal selected from the group of ruthenium, osmium, rhodium, iridium, palladium and platinum; (b) the resulting reaction mixture is separated into its constituents and the vinyl ester of the formula R—C(O)O—CH═CH2 and the carboxylic acid of the formula R1—C(O)—OH are removed; and (c) the carboxylic acid obtained after step (b) is converted to a derivative of the formula R1—C(O)—X, R1—CH2—OH or R6—C(O)—OH in which X is vinyloxy, O—CH—CH2, halogen, alkoxy of the formula OR2 in which R2 is a substituted or unsubstituted hydrocarbyl radical having 1 to 10 carbon atoms, amino of the formula NR3R4 in which R3 and R4 are each independently hydrogen or a substituted or unsubstituted hydrocarbyl radical having 1 to 10 carbon atoms, or carboxyl of the formula O—C(O)—R5 in which R5 is hydrogen or a substituted or unsubstituted hydrocarbyl radical having 1 to 10 carbon atoms, and R6 is the partly or fully halogen-substituted R1 radical.
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