Stereoselective addition of sodium organyl chalcogenolates to alkynylphosphonates: synthesis of diethyl 2-(organyl)-2-(organochalcogenyl)vinylphosphonates

Authors
Braga, AL Alves, EF Silveira, CC de Andrade, LH
Citation
Al. Braga et al., Stereoselective addition of sodium organyl chalcogenolates to alkynylphosphonates: synthesis of diethyl 2-(organyl)-2-(organochalcogenyl)vinylphosphonates, TETRAHEDR L, 41(2), 2000, pp. 161-163
Citations number
5
Categorie Soggetti
Chemistry & Analysis","Organic Chemistry/Polymer Science
Journal title
TETRAHEDRON LETTERS
ISSN journal
00404039 → ACNP
Volume
41
Issue
2
Year of publication
2000
Pages
161 - 163
Database
ISI
SICI code
0040-4039(20000108)41:2<161:SAOSOC>2.0.ZU;2-0
Abstract
Organyl thiolate, selenolate or tellurolate anions reacted with alkynylphos phonates 1 to give diethyl 2-(organyl)-2-(organochalcogenyl)vinylphosphonat es [beta-organochalcogenyl vinylphosphonates] 2 in satisfactory yields. The reaction was stereoselective, giving predominantly or exclusively the (Z)- stereoisomer. (C) 1999 Elsevier Science Ltd. All rights reserved.