Methyl 1-cyclohexene-1-carboxylate was used in,diastereoselective synthesis of cis-1,2-dialkenylcyclopropanols,synthesis of methyl 7,7-dimethyl-9-oxo-1,3,4,4a,6,7,8,9,9b-decahydrodibenzo[b,d]furan-4a-carboxylate,synthesis of ethyl 7-oxo-7b,8,9,10,11,11a-hexahydro-7H-benzo[b]phenaleno[2,1-d]furan-11a-carboxylate.