Role of B(C6F5)3 in catalyst activation, anion formation, and as C6F5 transfer agent

被引：38

作者：

Bochmann, M ^{[1
]}

Lancaster, SJ ^{[1
]}

Hannant, MD ^{[1
]}

Rodriguez, A ^{[1
]}

Schormann, M ^{[1
]}

Walker, DA ^{[1
]}

Woodman, TJ ^{[1
]}

机构：

[1] Univ E Anglia, Wolfson Mat & Catalysis Ctr, Sch Chem Sci, Norwich NR4 7TJ, Norfolk, England

来源：

PURE AND APPLIED CHEMISTRY | 2003年 / 75卷 / 09期

关键词：

D O I：

10.1351/pac200375091183

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The versatile reactivity of B(C6F5)(3) in alkene polymerization reactions is summarized. Adduct formation with basic anions such as CN- and NH2- gives extremely weakly coordinating diborates, which are the basis of some of the most active polymerization catalysts known to date. By contrast, the reaction of B(C6F5)(3) with zirconium half-sandwich complexes leads to extensive C6F5 transfer, including the surprising formation of borole-bridged tripledecker complexes. Main group alkyls undergo such C6F5 exchange reactions very readily unless donor ligands are present. Borate salts of new three-coordinate zinc alkyl cations proved to be highly effective catalysts for the ring-opening polymerization of epoxides and lactones.

引用

页码：1183 / 1195

页数：13

共 61 条

[51] Al-, Nb-, and Ta-based perfluoroaryloxide anions as cocatalysts for metallocene-mediated Ziegler-Natta olefin polymerization [J].

Sun, YM ;

Metz, MV ;

Stern, CL ;

Marks, TJ .

ORGANOMETALLICS, 2000, 19 (09) :1625-1627

[52] Copolymerization of 1,2-epoxycyclohexane and carbon dioxide using carbon dioxide as both reactant and solvent [J].

Super, M ;

Berluche, E ;

Costello, C ;

Beckman, E .

MACROMOLECULES, 1997, 30 (03) :368-372

[53] REACTION OF (BUTADIENE)ZIRCONOCENE WITH TRIS(PENTAFLUOROPHENYL)BORANE - A NOVEL WAY OF GENERATING METHYLALUMOXANE-FREE HOMOGENEOUS ZIEGLER-TYPE CATALYSTS [J].

TEMME, B ;

ERKER, G ;

KARL, J ;

LUFTMANN, H ;

FROHLICH, R ;

KOTILA, S .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 1995, 34 (16) :1755-1757

[54] Weakly coordinating nature of a carborane cage bearing different halogen atoms.: Synthesis and structural characterization of icosahedral mixed halocarborane anions, 1-H-CB11Y5X6- (X, Y=Cl, Br, I) [J].

Tsang, CW ;

Yang, QC ;

Sze, ETP ;

Mak, TCW ;

Chan, DTW ;

Xie, ZW .

INORGANIC CHEMISTRY, 2000, 39 (25) :5851-5858

[55]

Turner H. W., 1988, European Patent, Patent No. 0277004

[56] Reactions of zinc dialkyls with (perfluorophenyl)boron compounds:: Alkylzinc cation formation vs C6F5 transfer [J].

Walker, DA ;

Woodman, TJ ;

Hughes, DL ;

Bochmann, M .

ORGANOMETALLICS, 2001, 20 (17) :3772-3776

[57] B(C6F5)3 as C6F5 transfer agent in zirconium chemistry:: Borole sandwich and borole-bridged triple-decker complexes [J].

Woodman, TJ ;

Thornton-Pett, M ;

Hughes, DL ;

Bochmann, M .

ORGANOMETALLICS, 2001, 20 (19) :4080-4091

[58] B(C6F5)3 as a C6F5 transfer reagent in zirconium chemistry:: facile formation of the borole-bridged triple-decker complex [Zr2Cp"2(C6F5)2{μ-η5:η5-C4H4BCH2-η3,κF-CHCHCHB(C6F5)3}] [J].

Woodman, TJ ;

Thornton-Pett, M ;

Bochmann, M .

CHEMICAL COMMUNICATIONS, 2001, (04) :329-330

[59] CATION-LIKE HOMOGENEOUS OLEFIN POLYMERIZATION CATALYSTS BASED UPON ZIRCONOCENE ALKYLS AND TRIS(PENTAFLUOROPHENYL)BORANE [J].

YANG, XM ;

STERN, CL ;

MARKS, TJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (09) :3623-3625

[60] CATIONIC ZIRCONOCENE OLEFIN POLYMERIZATION CATALYSTS BASED ON THE ORGANO-LEWIS ACID TRIS(PENTAFLUOROPHENYL)BORANE - A SYNTHETIC, STRUCTURAL, SOLUTION DYNAMIC, AND POLYMERIZATION CATALYTIC STUDY [J].

YANG, XM ;

STERN, CL ;

MARKS, TJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (22) :10015-10031

← 1 2 3 4 5 6 7 →