131944-73-5

Upstream product

• 1067-87-4 Diethyl allylphosphonate 
• 555-16-8 4-nitrobenzaldehdye 
• 683-08-9 Diethyl methylphosphonate 
• 131944-68-8 diethyl α-(α'-hydroxy-p-nitro-benzyl)-allylphosphonate 

Relevant academic research and scientific papers

Efficient Synthesis of Substituted 2-Diethylphosphonylbuta-1,3-dienes

Numerous new substituted 2-diethylphosphonylbuta-1,3-dienes 5 bearing various aryl or alkyl substituents at the 1- and 4-positions were conveniently prepared from 2-diethylphosphonyl homoallylic alcohols 3, by stereospecific dehydration with dicyclohexylc

Phosphonic systems. Part XI. Reaction of diethyl propenylphosphonate carbanion with aromatic aldehydes. Mechanistic study

Diethyl prop-2-enylphosphonate (allylic phosphonate) when treated with BuLi gives the lithiated derivative which adds to aromatic aldehydes via the α or γ carbon atom of the allylic system.The addition is fully reversible, and the α-adducts represent the kinetic, while the γ-adducts the termodynamic products.Diethyl prop-1-enylphosphonate (vinylic phosphonate) does not react with aldehydes under those conditions; conjugate addition of the organolithium reagent to the α,β-unsaturated olefinic bond occurs instead.Key Words: allylic phosphonates; vinylic phosphonates; reversible addition to aldehydes; lithiation.

STUDIES ON ORGANOPHOSPHORUS COMPOUNDS XLIV. STRUCTURAL EFFECT OF ELECTROPHILES ON THE REGIOSELECTIVITY OF CARBANION DERIVED FROM DIALKYL ALLYLPHOPHONATES

For the evaluation of the structural effect of electrophiles on the regioselectivity of ambident anions, the reaction of phosphoryl allylic carbanion with p-substituted benzaldehydes was investigated.