Synthesis of (Z)-1-aryl-2-(germyl)-1-(stannyl)ethenes and the related ethenes, precursors to stereodefined germylethenes, via Pd(dba)(2)-P(OCH2)(3)CEt-catalyzed germastannation of acetylenes in THF

Authors
Senda, Y Oguchi, Y Terayama, M Asai, T Nakano, T Migita, T
Citation
Y. Senda et al., Synthesis of (Z)-1-aryl-2-(germyl)-1-(stannyl)ethenes and the related ethenes, precursors to stereodefined germylethenes, via Pd(dba)(2)-P(OCH2)(3)CEt-catalyzed germastannation of acetylenes in THF, J ORGMET CH, 622(1-2), 2001, pp. 302-308
Citations number
41
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
JOURNAL OF ORGANOMETALLIC CHEMISTRY
ISSN journal
0022328X → ACNP
Volume
622
Issue
1-2
Year of publication
2001
Pages
302 - 308
Database
ISI
SICI code
0022-328X(20010315)622:1-2<302:SO(ATR>2.0.ZU;2-0
Abstract
(Z)-1-Aryl-2-(germyl)-1-(stannyl)ethenes are synthesized in high yields by the addition of tributyl(triethylgermyl)stannane to arylacetylenes catalyze d by a specific combination catalyst, Pd(dba)(2) and 4-ethyl-1-phospha-2,6, 7-trioxabicyclo[2.2.2]octane, in tetrahydrofuran. Ethynylthiophene and 2-me thyl-3-butyn-2-ol are also subject to the germastannation to afford the res pective adducts in high yields. In addition, the J(Sn-H) and C-13-NMR data for their adducts are presented. (C) 2001 Elsevier Science B.V. All rights reserved.