A general synthetic method for 2,6-cyclodecadienone system by intramolecular alkylation of protected cyanohydrins

2,6-Dimethyl-(E,E)-2,6-cyclodecadienone (12), 3,7-dimethyl-(E,E)-2,6-cyclodecadienone (15), 3,7-dimethyl-(Z,E)-2,6-cyclodecadienone (18) were synthesized by intramolecular alkylation of unsaturated cyanohydrin ethers.