DRY REACTION OF DIETHYL CYANOMETHYLPHOSPHONATE AND TETRAETHYL METHYLENEDIPHOSPHONATE WITH BENZALDEHYDE ON SOLID BASES

Citation
M. Hachemi et al., DRY REACTION OF DIETHYL CYANOMETHYLPHOSPHONATE AND TETRAETHYL METHYLENEDIPHOSPHONATE WITH BENZALDEHYDE ON SOLID BASES, Phosphorus, sulfur and silicon and the related elements, 113(1-4), 1996, pp. 131-136
Citations number
26
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
10426507
Volume
113
Issue
1-4
Year of publication
1996
Pages
131 - 136
Database
ISI
SICI code
1042-6507(1996)113:1-4<131:DRODCA>2.0.ZU;2-Z
Abstract
Competitive Horner and Knoevenagel reactions of benzaldehyde with diet hyl cyanomethylphosphonate and tetraethyl methylenediphosphonate succe ssively on different solid bases (oxide, fluoride and mixtures) withou t the use of solvent were investigated. Tetraethyl methylenediphosphon ate with benzaldehyde with similar conditions gave only the product of Horner's reaction. Basicity of the solid and nature of the cation (mo no or divalent) of the base seemed important to explain the ratio of p roducts formed in the Horner/Knoevenagel reactions.