Novel and general cross-coupling reactions of alkynylzinc reagents and organotellurium compounds

Authors
Dabdoub, MJ Dabdoub, VB Marino, JP
Citation
Mj. Dabdoub et al., Novel and general cross-coupling reactions of alkynylzinc reagents and organotellurium compounds, TETRAHEDR L, 41(4), 2000, pp. 437-440
Citations number
27
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
4
Year of publication
2000
Pages
437 - 440
Database
ISI
SICI code
0040-4039(20000122)41:4<437:NAGCRO>2.0.ZU;2-#
Abstract
The efficient cross-coupling reactions of different alkynyl organozinc reag ents with unsaturated organotellurium species catalyzed by Pd(PPh3)(4)/CuI and using THF/DMF systems are described. These cross-coupling reactions are general and permit the formation of new sp-sp(2) carbon-carbon bonds. New reactions to reach the necessary alkynylzinc intermediates were also develo ped from terminal alkynes or using acetylenic tellurides as starting materi als. (C) 2000 Elsevier Science Ltd. All rights reserved.