Synthesis of functionalized tri- and tetrasubstituted vinylic tellurides from enolphosphates through vinylic substitution by lithium butyltellurolate

Authors
Barrientos-Astigarraga, RE Castelani, P Sumida, CY Comasseto, JV
Citation
Re. Barrientos-astigarraga et al., Synthesis of functionalized tri- and tetrasubstituted vinylic tellurides from enolphosphates through vinylic substitution by lithium butyltellurolate, TETRAHEDR L, 40(44), 1999, pp. 7717-7720
Citations number
13
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
40
Issue
44
Year of publication
1999
Pages
7717 - 7720
Database
ISI
SICI code
0040-4039(19991029)40:44<7717:SOFTAT>2.0.ZU;2-E
Abstract
Vinylic tellurides are precursors of important highly reactive vinylic or,o rganometallics (e.g. vinyl Li and Cu species). Herein we report that tri- a nd tetrasubstituted functionalized vinylic tellurides can be prepared from enolphosphates through a vinylic substitution by lithium butyltellurolate. Starting from mixtures of Z- and E-enolphosphates, only the Z-vinylic tellu ride is formed. (C) 1999 Elsevier Science Ltd. All rights reserved.