Olefin metathesis catalyst bearing a chelating phosphine ligand

被引：37
作者：
Lexer, Christina [1 ]
Burtscher, Daniel [1 ]
Perner, Bernhard [1 ]
Tzur, Eyal [2 ,3 ]
Lemcoff, N. Gabriel [2 ]
Slugovc, Christian [1 ]
机构：
[1] Graz Univ Technol, Inst Chem & Technol Mat ICTM, A-8010 Graz, Austria
[2] Ben Gurion Univ Negev, Dept Chem, IL-84105 Beer Sheva, Israel
[3] SCE Sami Shamoon, Coll Engn, Dept Chem Engn, IL-77245 Ashdod, Israel
来源：
JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2011年 / 696卷 / 11-12期
基金：
以色列科学基金会;
关键词：
Olefin metathesis; Catalyst; Ruthenium; ROMP; RING-CLOSING METATHESIS; CARBENE LIGAND; RUTHENIUM; POLYMERIZATION; INITIATORS; COMPLEXES; CYCLOISOMERIZATION; ISOMERIZATION; MECHANISM; SOLVENTS;
D O I：
10.1016/j.jorganchem.2011.03.005
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
An improved synthetic procedure for the complex (SPY-5-34)-dichloro-(kappa(2)(C,P)-diphenyl-(2-benzylidene)- phosphine)-(1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydro-imidazol-2-ylidene)-ruthenium (2) was elaborated and the title compound was tested as latent initiator in Ring Opening Metathesis Polymerization (ROMP) and as catalyst for Ring-Closing Metathesis (RCM) at elevated temperatures. While not particularly suited as latent initiator for ROMP, exhibiting a switching temperature of only 42 degrees C in the polymerization of a typical norbornene derivative, 2 shows an appealing performance in RCM of alpha,omega-dienes at higher temperatures. (C) 2011 Elsevier B. V. All rights reserved.
引用
收藏
页码：2466 / 2470
页数：5
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