Sodium and potassium derivatives of 2-(diphenylphosphinoyl)-2-phenylethenol: Synthesis, structure and reactivity

Authors
Petrova, J Momchilova, S Haupt, ETK
Citation
J. Petrova et al., Sodium and potassium derivatives of 2-(diphenylphosphinoyl)-2-phenylethenol: Synthesis, structure and reactivity, MAIN GR CHE, 2(4), 1998, pp. 267-273
Citations number
19
Categorie Soggetti
Chemistry
Journal title
MAIN GROUP CHEMISTRY
ISSN journal
10241221 → ACNP
Volume
2
Issue
4
Year of publication
1998
Pages
267 - 273
Database
ISI
SICI code
1024-1221(1998)2:4<267:SAPDO2>2.0.ZU;2-W
Abstract
The sodium and potassium derivatives of 2-(diphenylphosphinoyl)-2-phenyleth enol (2 and 3, respectively) are obtained and their (E)-enolate structure i s proved by spectroscopic methods. The study of their reactivity shows that regiospecific O-acylation of 2 and O-alkylation of 3 takes place, the corr esponding 1-acetoxy-2-(diphenylphosphinoyl)-2-phenyl-ethene 4 and 1-benzylo xy-2-(diphenylphosphinoyl)-2-phenyl-ethene 5 is isolated. The reaction of c arbonyl olefination is not observed.