63314-88-5Relevant academic research and scientific papers
Asymmetric Synthesis of (+)-Phosphinothricin and Related Compounds by the Michael Addition of Glycine Schiff Bases to Vinyl Compounds
Minowa, Nobuto,Hirayama, Masao,Fukatsu, Shunzo
, p. 1761 - 1766 (2007/10/02)
(S)-(+)-Phosphinothricin was prepared in good optical yield by th Michael addition of chiral glycine Schiff base derived from (S)-2-hydroxy-3-pinanone to vinyl phosphorus compound. (R)-(-)-Phosphinothricin, an enantiomeric isomer, can also be prepared from the same chiral glycine Schiff base by choosing suitable reaction temperature.
Phosphinic acid esters and process for preparing the same
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, (2008/06/13)
Disclosed is a novel process for preparing [(3-amino-3-carboxy)-propyl-1]phosphinic acid derivatives, comprising reacting an alkylalkylphosphonyl halide with a vinylmagnesium halide to form a vinylphosphinic acid derivative, and reacting the vinylphosphinic acid derivative with a Shiff's base to form the aimed product. Also disclosed is a novel intermediate compound formed during the course of the above process, which compound has the general formula: STR1 (wherein R1, R2, R3, R4 and R5 are as defined in the specification).
A PRACTICAL SYNTHESIS OF (+/-)-PHOSPHINOTHRICINE
Minowa, Nobuto,Fukatu, Shunzo,Niida, Taro,Takada, Masao,Sato, Kikumasa
, p. 2391 - 2392 (2007/10/02)
A practical synthesis of (+/-)-phosphinothricine from trimethyl phosphite is described.
Phospho-Cope Rearrangement of Sodium Allylvinylphosphinate
Loewus, David I.
, p. 2292 - 2296 (2007/10/02)
Sodium allylvinylphosphinate (1) rearranges thermally to sodium hydrogen pent-4-enephosphonate (3) in virtually quantitative yield.The reaction probably constitutes a phospho-Cope rearrangement and presumably proceeds by way of the monomeric metaphosphonate 2 as a reactive intermediate.The half-time for the reaction is 4.67 h in water at 193.6+/- 1.0 deg C and 6.03 h in ethanol.By contrast, ethyl allylvinylphosphinate reacts in ethanol to give a mixture of compounds; although some of the product expected for a phospho-Cope is present in the mixture, the rearrangement is slower than that of the anion by a factor of at least 16.The mechanistic implications of these facts are discussed.
