Direct α-chlorination of O,O -dialkyl chalcogenophosphonates with phosphorus oxychloride
作者:Stéphane Mons、Nicolas Sabourault、Emmanuel Klein、Charles Mioskowski、Luc Lebeau
DOI:10.1016/s0040-4039(01)01382-x
日期:2001.10
alpha -Chlorination of phosphonates, and O,O-dialkyl thio- and selenophosphonates involving the direct reaction of their lithiated anion with phosphorus oxychloride is described. The reaction gives good results where previously known methods fail. The role of the chalcogen atom, and the influence of the nature of the alkyl chain with respect to the reactivity are discussed. (C) 2001 Elsevier Science Ltd. All rights reserved.