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US 5,631,400 AGranted
Carbonylation process
AssigneeShell Oil Company
InventorsSharon M. Beshouri, Tonya L. Garcia
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Abstract
A process is provided for carbonylation of ethylenic unsaturation comprising the steps of: providing a catalyst system comprising a) a Group VIII metal compound, b) an organic phosphine, and c) and acid; and contacting acetylene, the catalyst system, carbon monoxide, hydrogen, and a nucleophilic compound under conditions effective to carbonylate the acetylene. The presents of hydrogen unexpectedly improves the yield of the desired product (i.e., acrylic acid or the ester thereof).
Claims12
A process for carbonylation of ethylenic unsaturation comprising the steps of:
- providing a catalyst system comprising
- a) a Group VIII metal compound,
- b) an organic phosphine, and
- c) an acid;
- and
- contacting acetylene, the catalyst system, carbon monoxide, hydrogen, and a nucleophilic compound under conditions effective to carbonylate the acetylene.
3 more elements
Dependencies are inferred from the claim text.