1: 2,2'-methylene-5',6''-methylene-p-terpenyl With sodium t-butanolate in dimethyl sulfoxide T=20 - 80°C; 1 h; 2: 1-bromo-octane in dimethyl sulfoxide T=80 - 90°C; 1 h; Product distribution / selectivity;

1: 2,2'-methylene-5',6''-methylene-p-terpenyl With sodium t-butanolate in dimethyl sulfoxide T=20 - 65°C; 0.5 h; 2: methyl iodide in dimethyl sulfoxide T=65°C; 7 h;

sodium hydroxide in dimethyl sulfoxide

in tetrahydrofuran T=-78 - 20°C;

1: sodium hydroxide / dimethyl sulfoxide 2: bromine; sodium carbonate / dichloromethane; water View Scheme