Application of the BHQ benzannulation reaction to the synthesis of benzo-fused coumarins

被引:11
作者
Bull, James A.
Lujan, Cristina
Hutchings, Michael G. [1 ]
Quayle, Peter [1 ]
机构
[1] Univ Manchester, Sch Chem, DyStar UK Ltd, Manchester M13 9PL, Lancs, England
关键词
ATRC; Kharasch; Cyclisation; Radical; Copper; Carbene; Benzannulation; Lactone; CATALYST ECONOMY; METATHESIS CATALYSTS; COMPLEXES; ATRC; REARRANGEMENT;
D O I
10.1016/j.tetlet.2009.03.077
中图分类号
O62 [有机化学];
学科分类号
070303 [有机化学];
摘要
A new approach to the synthesis of the 6H-benzo[d]naphthal[,2-b]pyran-6-one ring system present in the gilvocarcin family of antibiotics is described. The key feature of this approach is the application of a new benzannulation strategy (the 'BHQ Reaction') whereby readily available ortho-allylaryl trichloroacetates are transformed into naphthalene derivatives via a cascade of reactions involving an initial ATRC reaction followed by the extrusion of CO2. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:3617 / 3620
页数:4
相关论文
共 29 条
[1]
BULL JA, 2008, THESIS U MANCHESTER
[2]
New reactivity patterns of copper(I) and other transition metal NHC complexes:: application to ATRC and related reactions [J].
Bull, James A. ;
Hutchings, Michael G. ;
Lujan, Cristina ;
Quayle, Peter .
TETRAHEDRON LETTERS, 2008, 49 (08) :1352-1356
[3]
A remarkably simple and efficient benzannulation reaction [J].
Bull, James A. ;
Hutchings, Michael G. ;
Quayle, Peter .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2007, 46 (11) :1869-1872
[4]
Sequential Claisen rearrangement and intramolecular Heck reaction as a route to medium-ring oxacycle-fused heterocycles [J].
Chattopadhyay, Shital K. ;
Neogi, Kaushik ;
Singha, Sovan K. ;
Dey, Rajat .
SYNLETT, 2008, (08) :1137-1140
[5]
Synthesis of thio- and oxo-analogues of isopsoralen [J].
Clarke, DJ ;
Robinson, RS .
TETRAHEDRON, 2002, 58 (14) :2831-2837
[6]
NUCLEOPHILIC-1,2 ADDITION OF BROMINE TO ELECTRON-DEFICIENT DOUBLE-BONDS BY PERBROMIDE REAGENTS [J].
COLLADO, IG ;
GALAN, RH ;
MASSANET, GM ;
ALONSO, MS .
TETRAHEDRON, 1994, 50 (21) :6433-6440
[7]
Model studies towards the synthesis of gilvocarcin M [J].
Cordero-Vargas, A ;
Quiclet-Sire, B ;
Zard, SZ .
ORGANIC & BIOMOLECULAR CHEMISTRY, 2005, 3 (24) :4432-4443
[8]
Díez-González S, 2008, ALDRICHIM ACTA, V41, P43
[9]
N-heterocyclic carbene-copper(I) complexes in homogeneous catalysis [J].
Diez-Gonzalez, Silvia ;
Nolan, Steven P. .
SYNLETT, 2007, (14) :2158-2167
[10]
Atom transfer radical cyclization reactions (ATRC): synthetic applications [J].
Edlin, CD ;
Faulkner, J ;
Helliwell, M ;
Knight, CK ;
Parker, J ;
Quayle, P ;
Raftery, J .
TETRAHEDRON, 2006, 62 (13) :3004-3015