Detail of "119-43-7"

Reference

Olefin polymerization catalyst components

Olefin polymerization catalyst components. (Mitsubishi Petrochemical Co., Ltd., Japan). Jpn. Kokai Tokkyo Koho JP 58117206 A2 12 Jul 1983 Showa, 10 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: C08F010-00; C08F004-02; C08F004-64. APPLICATION: JP 81-214953 28 Dec 1981. DOCUMENT TYPE: Patent CA Section: 35 (Chemistry of Synthetic High Polymers) Highly active, stereospecific title solid components were prepd. from (A) a Mg halide, (B) RR1R2CCO2R3 (R = H, C1-12 hydrocarbyl; R1,R2, R3 = C1-12 hydrocarbyl), (C) M(OR5)mR6n-m (M = Ti, B; R5 = C1-20 hydrocarbyl; R6 = halogen; n = valency of M; 1 ￡ m ￡ n), and a Ti halide. Thus, 20 g MgCl2 was vibration-milled with 3.1 g B(OEt)3 [150-46-9], then with 12.1 g Et a-phenylbutyrate [119-43-7]. The milled product (~6 g) was combined with 50 mL ClCH2CH2Cl and 50 mL TiCl4 and heated at 80° for 2 h, then freed from the supernatant, treated again with TiCl4, and washed with heptane to give a solid catalyst component. Polymn. of propylene in the presence of this catalyst component, triisobutylaluminum [100-99-2], ethylaluminum sesquichloride [12075-68-2], and Me p-toluate [99-75-2] in heptane at 70° showed catalyst efficiency 52.2 ′ 104 g polymer/g Ti, atactic polymer formation 0.83%, product isotacticity index 96.5%, and melt index 2.1 g/10 min.

Synthesis of an optically active pentaalkylcyclopentadienyl ligand

Synthesis of an optically active pentaalkylcyclopentadienyl ligand. Applications in organometallic chemistry. Dormond, A.; El Bouadili, A.; Moise, C. (Lab. Synth. Electrosynth.Several reagents with their cas registry numbers 88083-03-8 and 119-43-7 are used here. Organomet., Fac. Sci., Dijon 21100, Fr.). Tetrahedron Lett., 24(30), 3087-90 (French) 1983. CODEN: TELEAY. ISSN: 0040-4039. DOCUMENT TYPE: Journal CA Section: 29 (Organometallic and Organometalloidal Compounds) Section cross-reference(s): 24 Treating optically active EtO2CCHEtPh with LiCMe:CHMe gave optically active cyclopentadiene I, which reacted with BuLi and TiCl3 or Mo(CO)6 to give L2TiCl2 or [LMo(CO)3]2 after oxidn. Treating TiCl3 with LLi and L1Li (L1 = pentamethylcyclopentadienyl) gave LL1TiCl2 after oxidn. .