Stereoselective synthesis of internal olefins
AssigneeUniversity of Illinois Board of Trustees
InventorsTheodore L. Brown, Philip O. Nubel
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Abstract
Regioselective and stereoselective synthesis of trans-internal olefins is effected with transition metal catalyst complexes having pairs of associated active sites. Photolytic conditions are generally employed.
Claims13
A stereoselective process for the synthesis of internal olelfins from terminal olefins, said terminal olefins having a lower molecular weight, comprising the steps of:
- (a) affording a transition metal catalyst complex having two associated reactive sites, wherein the transition metal catalyst complex comprises the photolysis reaction product of a terminal olefin with two associated reactive sites of paired transition metal atoms;
- (b) contacting at least one terminal olefin with the catalyst complex;
- and
- (c) recovering the internal olefin product therefrom.
A process for the production of trans-3-hexene from ethylene, as a dilute solution in toluene, in the presence of a catalyst complex, said complex resulting from the photolytic reaction of ethylene with dirhenium decacarbonyl, said process being conducted at a temperature within the range from about 20.degree. to about 60.degree. C. and at a pressure within the range from about 0 to about 10 p.s.i.g.
Dependencies are inferred from the claim text.