Sodium and Potassium Derivatives of 2-(Diphenylphosphinoyl)-2-Phenyl-Ethenol: Synthesis, Structure and Reactivity

Article type: Research Article

Authors: Petrova, Jordanka | Momchilova, Snezhana | Haupt, Erhard T.K.

Affiliations: Faculty of Chemistry, Sofia University, 1 J. Bourchier Avenue, 1164 Sofia, Bulgaria | Institute of Inorganic and Applied Chemistry, University of Hamburg, Martin-Luther-King-Pl. 6, D-20146 Hamburg, FRG

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Abstract: The sodium and potassium derivatives of 2-(diphenylphosphinoyl)-2-phenylethenol (2 and 3, respectively) are obtained and their (E)-enolate structure is proved by spectroscopic methods. The study of their reactivity shows that regiospecific O-acylation of 2 and O-alkylation of 3 takes place, the corresponding 1-acetoxy-2-(diphenylphosphinoy1)-2-phenyl-ethene 4 and 1-benzyloxy-2-(diphenylphosphinoyl)-2-phenyl-ethene 5 is isolated. The reaction of carbonyl olefination is not observed.

DOI: 10.1080/10241229812331341459

Journal: Main Group Chemistry, vol. 2, no. 4, pp. 267-273, 1998