摘要:
POLYCYCLIC BRIDGED RING COMPOUNDS ARE PRODUCED BY A TWO-STAGE PROCESS IN WHICH A SUBSTITUTED CYCLIC HYDROCARBON SUCH AS NORBORNENYL CHLORIDE IS CONDENSED WITH AN ACYCLIC CONJUGATED DIOLEFINE, E.G. BUTADIENE, ISOPRENE ETC. AND THE SUBSTITUENTS FROM THE CYCLIC HYDROCARBON SUBSEQUENTLY REMOVED TO PRODUCE A DOUBLE BOND. A PREFERRED SUBSTITUENT IS A HALOGEN ELIMINATED AS A HYDROGEN HALIDE. THE SUBSTITUTED CYCLIC HYDROCARBON MAY ITSELF BE PRODUCED FROM CYCLOPENTADIENE OR A NORBORNENE BY REACTION WITH AN ACYCLIC SUBSTITUTED OLEFINE SUCH AS VINYL CHLORIDE. THE PRODUCTS OF THE PROCESS HAVE UTILITY AS TERMONOMERS IN EPT RUBBERS, 1,4-ENDOMETHYLENE-6-METHYL-1,4,5,8,9,10HEXAHYDRONAPHTHALENE BEING PARTICULARLY USEFUL IN THIS RESPECT.