Journal of Organometallic Chemistry p. 13 - 22 (1996)
Update date:2022-08-03
Topics:
Walther
Fischer
Goerls
Koch
Schweder
Organometallic compounds of the type (Siam)2ZrX2 (Siam = N,N′-bis(trimethylsilyl)benzamidinat; X = methyl, benzyl or allyl) have been synthesized by reaction of (Siam)2ZrCl2 and Grignard reagents. The structures of (Siam)2ZrX2 (X = Cl, I, CH3 or CH2-C6H5) and (Siam)3ZrCl have been investigated by X-ray crystal structure analysis. (Siam)3ZrCl shows a capped octahedral structure with the coordination number 7 at the zirconium. (Siam)2ZrX2 compounds have distorted octahedral structures and the ligands occupy cis-positions. The distortion depends on the bulkiness of the ligand X. The systems (Siam)2ZrCl2-methylalumoxan (MAO) and (Siam)3ZrCl-MAO polymerize at 30°C reactive olefins such as ethylene or norbornene. Less reactive olefins (e.g. propene) can be reacted with (Siam)ZrCl3-MAO to yield oligomers and polymers. The same catalytic system is able to convert 1,5-hexadiene selectively under formation of methylene-cyclopentane.
Daicel Chiral Technologies (China)CO.,LTD
Contact:021-5046-0086*8
Address:Part C, FL 5, the 16th Building, No. 69, XiYa Road, WaiGaoQiao Free Trade Zone, Shanghai, 200131, P.R.China
Chemvon Biotechnology Co. Ltd.
website:http://www.chemvon.com
Contact:86-21-58550039;86-21-31268550-8004
Address:Suite B-10#, 6999 Chuansha Road, Pudong District, Shanghai 201202, China
Contact:+86-535-8888888
Address:No.161 Haishi Rd.
Hangzhou Pharma & Chem Co.,Ltd.
Contact:+86-571-87040515
Address:No,139Qingchun Rd
website:http://www.sigmaaldrich.com
Contact:800 558-9160
Address:Industriestrasse 25CH-9471 Buchs SGSwitzerland
Doi:10.7164/antibiotics.49.155
(1996)Doi:10.1021/jo01375a023
(1954)Doi:10.1021/jo01076a019
(1960)Doi:10.1039/c9cc01743g
(2019)Doi:10.1515/znb-1996-0119
(1996)Doi:10.1248/cpb.36.2724
(1988)
