| 摘要 |
1,210,416. Nickel #-allyl halogenoacetates. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 23 Aug., 1968 [23 Aug., 1967], No. 40380/68. Heading C2J. [Also in Division C3] The invention comprises novel nickel-#-allyl halogenoacetates of formula where X is halogen, n = 1-3, R 1-5 are hydrogen, alkyl, cycloalkyl, aralkyl or aryl or at least two radicals R may form part of a ring (preferably of 5-12 carbon atoms), and m is 1 or 2. The above compounds may be made by reacting allyl halogenoacetates of formula with nickel carbonyl or olefinic complexes of Ni, under an inert atmosphere, and preferably at - 40‹ C. to 120‹ C. Suitable allyl halogenoacetates are allyl trifluoroacetate; allyl difluoroacetate; crotyl difluoroacetate; methallyl monofluoroacetate; allyl trichloroacetate; allyl dichloroacetate; allyl difluoromonochloroacetate; cinnamyl trifluoroacetate; 1 - octenyl 3 - trifluoroacetate; 2 - octenyl 4 - trifluoroacetate; allyl monofluorodichloroacetate and pinenyl trichloroacetate Suitable Ni complexes are nickel tetracarbonyl; nickel biscyclopentadiene; nickel bis (1,5-cyclo-octadiene); 1,5,9 centro-nickel trans, trans, transcyclododecatriene; nickel bis (3,7-dimethyl- 1,5 cyclo-octadiene); nickel cyclo-octatetraene; nickel tris-bicycloheptene and nickel bis-duroquinone. The novel compounds may be used as catalysts in the polymerization of conjugated diolefins (see Division C3). |
