| abstract |
CYCLODODECATRIENES (I.E., CYCLIC TRIMERS OF 1,3-DIENES) ARE PRODUCED BY CAUSING AT LEAST ONE 1,3-DIENE TO UNDERGO CYCLOTRIMERIZATION BY CONTACTING A CATALYST RESULTING FROM THE COMBINING OF A TITANIUM COMPOUND (E.G., TITANIUM TETRACHLORIDE), AN ORGANO-ALUMINUM COMPOUND (E.G., DIETHYL ALUMINUM CHLORIDE), AND AN ELECTRON-DONOR COMPONENT (E.G., A PHOSPHITE, PHOSPHINE, A PYRIDINE DERIVATIVE, OR A THIOPHENE DERIVATIVE). |