Metal-mediated diboration of Alkynes with [2]borametalloarenophanes under stoichiometric, homogeneous, and heterogeneous conditions

被引：93

作者：

Braunschweig, Holger ^{[1
]}

Kupfer, Thomas ^{[1
]}

Lutz, Matthias ^{[1
]}

Radacki, Krzysztof ^{[1
]}

Seeler, Fabian ^{[1
]}

Sigritz, Rainer ^{[1
]}

机构：

[1] Univ Wurzburg, Inst Anorgan Chem, D-97074 Wurzburg, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2006年 / 45卷 / 47期

关键词：

boron; diboration; heterogeneous catalysis; palladium; platinum;

D O I：

10.1002/anie.200603130

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) ansa-[2]Borabis(benzene)chromophane and ansa-[2]boraferroarenophane were treated with alkynes in the presence of catalytic amounts of platinum or palladium/charcoal (see example) to afford the corresponding ansa-bis(boryl)alkenes in excellent yields and without detectable side products. The use of Pt and Pd are the first examples of diboration reactions of alkynes to be conducted under heterogeneous conditions. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：8048 / 8051

页数：4

共 43 条

[31] Synthesis and characterization of platinum(II)-bis(boryl) catalyst precursors for diboration of alkynes and diynes: Molecular structures of cis-[(PPh(3))(2)Pt(B-4-Bu(t)cat)(2)], cis-[(PPh(3))(2)Pt(Bcat)(2)], cis-[(dppe)Pt(Bcat)(2)], cis-[(dppb)Pt(Bcat)(2)], (E)-(4-MeOC(6)H(4))C(Bcat)=CH(Bcat), (Z)-(C6H5)C(Bcat)=C(C6H5)(Bcat), and (Z,Z)-(4-MeOC(6)H(4))C(Bcat)=C(Bcat)C(Bcat)=C(4-MeOC(6)H(4))(Bcat) (cat equals 1,2-O2C6H4; dppe equals Ph(2)PCH(2)CH(2)PPh(2); dppb equals Ph(2)P(CH2)(4)PPh(2)) [J].

Lesley, G ;

Nguyen, P ;

Taylor, NJ ;

Marder, TB ;

Scott, AJ ;

Clegg, W ;

Norman, NC .

ORGANOMETALLICS, 1996, 15 (24) :5137-5154

[32] Transition metal complexes incorporating the BF2 ligand formed by oxidative addition of the B-B bond in B2F4 [J].

Lu, N ;

Norman, NC ;

Orpen, AG ;

Quayle, MJ ;

Timms, PL ;

Whittell, GR .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2000, (22) :4032-4037

[33] Transition metal catalysed diboration [J].

Marder, TB ;

Norman, NC .

TOPICS IN CATALYSIS, 1998, 5 (1-4) :63-73

[34] ZIRCONOCENE-MEDIATED CYCLIZATION OF ALKYNYL DIBORYLMETHANES TO 1,3-DIBOROLANES [J].

METZLER, N ;

NOTH, H ;

THOMANN, M .

ORGANOMETALLICS, 1993, 12 (07) :2423-2425

[35] PALLADIUM-CATALYZED CROSS-COUPLING REACTIONS OF ORGANOBORON COMPOUNDS [J].

MIYAURA, N ;

SUZUKI, A .

CHEMICAL REVIEWS, 1995, 95 (07) :2457-2483

[36] Selectivity, activity and durability:: Homogenic catalysis in the chemical industry [J].

Röper, M .

CHEMIE IN UNSERER ZEIT, 2006, 40 (02) :126-135

[37] Key technology of the chemical industry -: Heterogenic catalysis [J].

Schüth, F .

CHEMIE IN UNSERER ZEIT, 2006, 40 (02) :92-103

[38]

Thomas J. M., 1997, Principles and Practice of Heterogeneous Catalysis

[39] Single-site heterogeneous catalysts [J].

Thomas, JM ;

Raja, R ;

Lewis, DW .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (40) :6456-6482

[40]

THOMAS JM, 2002, ANGEW CHEM, V117, P6614

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