Back to results
US 4,225,736 AGranted
Codimer of norbornadiene and cyclohexadiene
AssigneeSun Oil Company of Pennsylvania
InventorHarry K. Myers, Jr.
Life of this patent
Estimating the term…
Abstract
Novel codimer (I) of norbornadiene and 1,3-cyclohexadiene and its hydrogenated derivative (II), having the following structures: ##STR1## and processes for preparing both are disclosed. Product (II) can be used as a high energy fuel. Process for codimer I involves use of three component homogeneous catalytic system of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and one of three alkyl aluminum chlorides.
Claims10
Process for the catalytic codimerization of norbornadiene and 1,3-cyclohexadiene comprising:
- (a) contacting norbornadiene and 1,3-cyclohexadiene in the presence of a catalytic amount of a three-component homogeneous catalytic system consisting of cobaltic or cobaltous acetylacetonate, 1,2-bisdiphenylphosphino ethane and one of the following alkyl aluminum chlorides:
- diethylaluminum chloride, ethyl aluminum dichloride and ethyl aluminum sesquichloride;
- (b) having the contacting occurring at a temperature within the range from between about 20.degree. C. to about 100.degree. C.;
- and
- (c) continuing the contacting until the codimer of norbornadiene and 1,3-cyclohexadiene is prepared.
2 more elements
Dependencies are inferred from the claim text.