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PROCESS FOR PREPARING 5-(2-BROMOETHYLIDENE)-2(3H)-4A-METHYL-4,4A,5,6,7,8-HEXAHYDRONAPHTHALENE-2-ONE AND 5-ETHENYL-2(3H)-4A-METHYL-4,4A,7,8-TETRAHYDRONAPHTHALENE-2-ONE THEREFROM BY DEHYDROBROMINATION
PROCESS FOR PREPARING 5-(2-BROMOETHYLIDENE)-2(3H)-4A-METHYL-4,4A,5,6,7,8-HEXAHYDRONAPHTHALENE-2-ONE AND 5-ETHENYL-2(3H)-4A-METHYL-4,4A,7,8-TETRAHYDRONAPHTHALENE-2-ONE THEREFROM BY DEHYDROBROMINATION