Production of alicyclic unsaturated compounds having pendent functional groups
AssigneeStudiengesellschaft Kohle mbH
InventorsGunther Wilke, Paul Heimbach
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Abstract
Cyclocooligomerization of at least one conjugated diene and an alkyl acrylate in the presence of a non-carbonyl containing, zero-valent nickel complex compound catalyst to form an olefinically unsaturated alicyclic ring compound having the non-hydrocarbon functional group pendent from the ring.
Claims1
A process for preparing 3,7-cyclodecadiene carboxylic acid ethyl ester which comprises contacting butadiene and acrylic acid ethyl ester at a temperature of from about -10.degree. to 200.degree. C in the presence of a O-valent nickel complex combined with tri-(ortho phenyl phenyl) phosphite as the sole electron donor, the mol ratio of butadiene to acrylic acid ethyl ester being at least 2:1, the reaction being carried out for a period of time sufficient to prepare said 3,7-cyclodecadiene carboxylic acid ethyl ester.
Dependencies are inferred from the claim text.