[(PPh3)Ag(CB11H6Y6)] (Y = H, Br):: highly active, selective and recyclable Lewis acids for a hetero-Diels-Alder reaction

被引：31

作者：

Hague, C ^{[1
]}

Patmore, NJ ^{[1
]}

Frost, CG ^{[1
]}

Mahon, MF ^{[1
]}

Weller, AS ^{[1
]}

机构：

[1] Univ Bath, Dept Chem, Bath BA2 7AY, Avon, England

来源：

CHEMICAL COMMUNICATIONS | 2001年 / 21期

关键词：

D O I：

10.1039/b106719b

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The complex [(PPh3)Ag(CB11H6Br6)] 1 is an effective and selective catalyst (0.1 mol% loading) for a hetero-Diels-Alder reaction, which shows a marked dependence on the presence of trace amounts of water, while addition of Ag[Y] [Y = CB11H12, CB11H6Br6, O3SCF3] to a phosphine functionalised support gives an efficient and recyclable Lewis acid catalyst for this transformation.

引用

收藏

页码：2286 / 2287

页数：2

相关论文

共 13 条

[1] Ytterbium(III) triflate-catalysed preparation of calix[4]resorcinarenes: Lewis assisted Bronsted acidity [J].

Barrett, AGM ;

Braddock, DC ;

Henschke, JP ;

Walker, ER .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1999, (08) :873-878

[2] Recent developments in imino Diels-Alder reactions [J].

Buonora, P ;

Olsen, JC ;

Oh, T .

TETRAHEDRON, 2001, 57 (29) :6099-6138

[3] Polymer-supported cobalt carbonyl complexes as novel solid-phase catalysts of the Pauson-Khand reaction [J].

Comely, AC ;

Gibson, SE ;

Hales, NJ .

CHEMICAL COMMUNICATIONS, 2000, (04) :305-306

[4] Contemporary bimetallic molecules:: an unusual class of exo-closo metallacarbaboranes having no metal-metal bonds [J].

Ellis, DD ;

Franken, A ;

Jelliss, PA ;

Kautz, JA ;

Stone, FGA ;

Yu, PY .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 2000, (15) :2509-2520

[5] Silver as an exopolyhedral auxiliary to the rhenacarborane anion [Re(Co)3(η5-7,8-C2B9H11)]- [J].

Ellis, DD ;

Jeffery, JC ;

Jelliss, PA ;

Kautz, JA ;

Stone, FGA .

INORGANIC CHEMISTRY, 2001, 40 (09) :2041-2050

[6]

HAGUE CF, UNPUB

[7]

ITSUNO S, 2000, LEWIS ACIDS ORGANIC

[8] Activation conditions play a key role in the activity of zeolite CaY: NMR and product studies of Bronsted acidity [J].

Kao, HM ;

Grey, CP ;

Pitchumani, K ;

Lakshminarasimhan, PH ;

Ramamurthy, V .

JOURNAL OF PHYSICAL CHEMISTRY A, 1998, 102 (28) :5627-5638

[9] Multi-step organic synthesis using solid-supported reagents and scavengers: a new paradigm in chemical library generation [J].

Ley, SV ;

Baxendale, IR ;

Bream, RN ;

Jackson, PS ;

Leach, AG ;

Longbottom, DA ;

Nesi, M ;

Scott, JS ;

Storer, RI ;

Taylor, SJ .

JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 2000, (23) :3815-4195

[10] Carboranes: A new class of weakly coordinating anions for strong electrophiles, oxidants, and superacids [J].

Reed, CA .

ACCOUNTS OF CHEMICAL RESEARCH, 1998, 31 (03) :133-139