Temporary Protection of<i>H</i>-Phosphinic Acids as a Synthetic Strategy
作者:Laëtitia Coudray、Jean-Luc Montchamp
DOI:10.1002/ejoc.200900694
日期:2009.9
H-Phosphinates obtained through various methodologies are protected directly via reaction with triethyl orthoacetate. The resulting products can be manipulated easily, and various synthetic reactions are presented. For example, application to the synthesis of aspartate transcarbamoylase (ATCase) or kynureninase inhibitors are illustrated. Other reactions, such as Sharpless' asymmetric dihydroxylation
Alkylation of <i>H</i>-Phosphinate Esters under Basic Conditions
作者:Isabelle Abrunhosa-Thomas、Claire E. Sellers、Jean-Luc Montchamp
DOI:10.1021/jo062436o
日期:2007.4.1
An efficient and general procedure was developed for the direct alkylation of H-phosphinate esters with LHMDS at low temperature. The simplicity of the reaction allows the use of various H-phosphinate esters and takes place with a wide range of electrophiles. The approach can be employed to access some GABA analogues or precursors to GABA analogues. The isolated yields are moderate to good. This is the first report of an alkylation with a secondary iodide or a primary chloride.
1,1-Diethoxyethylphosphinates and phosphonites. Intermediates for the synthesis of functional phosphorus acids
作者:E. Keith Baylis
DOI:10.1016/0040-4039(95)01992-q
日期:1995.12
Masked hypophosphorous and methanephosphonous acid synthons have been developed which provide functional phosphonous esters after mild deprotection.