Process for manufacturing 1,4-dienes of high trans/cis ratio
Abstract
Abstract 1.4-DIENES OF TRANS/CIS-ISOMER RATIO OF AT LEAST 4:1 ARE MADE BY CONTACTING ETHYLENE WITH A 1,3-DIENE IN THE PRESENCE OF A ZEROVALENT OR DIVALENT NICKEL COMPOUND, SOLUBLE IN ORGANIC LIQUIDS, AN ORGANOALUMINUM CHLORIDE OR BROMIDE, AND A TERTIARY PHOSPHINE HAVING THE FORMULA (A)M-P(-(B)N)-(D)P WHERE A IS THE NAPHTHYL RADICAL; B IS AN ALKYL RADICAL HAVING 1-6 CARBON ATOMS OR ALLYL; D IS THE PHENYL OR A SUBSTITUTED PHENYL RADICAL HAVING ONE OR MORE SPECIFIC SUBSTITUENTS; M, N AND P ARE INTEGERS WHOSE SUM M+N+P=3; P IS AT LEAST 1; M IS AT MOST 1, AND EACH OF M AND N INDIVIDUALLY CAN BE 0. THE REACTION CAN BE RUN AT EITHER ATMOSPHERIC OR SUPERATMOSPHERIC PRESSURES IN A BATCHWISE OR CONTINUOUS PROCESS.
Inventors
- 👤 John Wilfred Collette
- 👤 Aaron Chung Liong Su
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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