151026-97-0Relevant articles and documents
α-Alkyl(aryl)sulfenyl substituted β-ketophosphonates: Synthesis, properties and reactivity
Miko?ajczyk, Marian,Ba?czewski, Piotr,Chefczyńska, Hanna,Szadowiak, Aldona
, p. 3067 - 3074 (2004)
A new synthesis of the title compounds via acylation of α-lithio-α-phosphorylalkyl sulfides is described. Two additional approaches to these compounds, although less efficient, involve: (a) sulfenylation of O-silylated dialkyl β-ketophosphonates and (b) the Arbuzov reaction of triethyl phosphite with α-chloro-α- methylthiomethyl phenyl ketone. The keto-enol tautomerism of the title compounds and reactivity of the anions derived from them with electrophilic reagents were investigated. The P(O)-olefination products obtained from electron rich aromatic aldehydes were found to undergo the acid-catalyzed desulfenylation reaction affording α,β-unsaturated ketones.
Complete assignment of 1H and 13C NMR spectra of some 4′-substituted diethyl 1-methylthio- and diethyl 1-methylsulfonyl-2-oxo- 2-phenylethylphosphonates
Reis, Adrians Karla C. A.,Olivato, Paulo R.,Rittner, Roberto
, p. 85 - 88 (2005)
The complete assignment of 1H and 13C NMR spectra of some 4′-substituted diethyl 1-methylthio- and diethyl 1-methylsulfonyl-2- oxo-2-phenylethylphosphonates bearing as substituents methoxy, fluoro, chloro, bromo and nitro is reported
