Patent ID: 6465703
Filing Date: 2002-10-15
Classification: C07C

Abstract:
A method of preparing continuously tetracyclododecenes shown by a below described general formula (3), characterized by inclusion of the following processes of steps 1 to 4, and by inclusion of a process of removing from a reaction system at least a part of 2-methyl-2-norbornenes shown by a below described general formula (4), which are contained in a reaction mixture; said steps 1 to 4 including:1) feeding 2-norbornenes shown by a below described general formula (1), crude cyclopentadiene and/or dicyclopentadiene, and an olefin shown by a below described general formula (2) continuously into a reactor for a reaction (where R1 and R2 in these formulae are identical or different functional groups, and are any of a hydrogen atom, a methyl group, or an ethyl group), and wherein 2) separating 2-norbornenes from the reaction mixture by distillation; 3) circulating at least a part of separated 2-norbornenes to the reactor; 4) isolating tetracyclododecenes from the reaction mixture.