| abstract |
1417938 Dimerisation catalysts IDEMITSU PETROCHEMICAL CO LTD 27 June 1974 [12 July 1973] 28567/74 Heading B1E [Also in Division C5] A dimerisation catalyst camprises (a) potassium (b) copper and (c) an aliphatic or cyoloaliphatic tertiary amine. Suitable amines are Me 3 N, Et 3 N, Pr 3 N, Bu 3 N, trihexylamine, trioctylamine, N-methylpyrrolidone, N-methylpiperidine, N, N, N', N'-tetramethyl ethylene diamine and triethylenediamine. |