SILYL PHOSPHITES V. THE REACTIONS OF TRIS(TRIMETHYLSILYL) PHOSPHITE WITH CARBONYL COMPOUNDS
作者:Mitsuo Sekine、Isamu Yamamoto、Akio Hashizume、Tsujiaki Hata
DOI:10.1246/cl.1977.485
日期:1977.5.5
When tris(trimethylsilyl) phosphite (1) was treated with aldehydes, ketones, or α,β-unsaturated aldehydes at room temperature, the 1,2-adducts were obtained in high yields (75–94%). On the other hand, when α,β-unsaturated ketones or ethyl crotonate was used, the 1,4-adducts were obtained in high yields (71–84%). The silylated products were smoothly hydrolyzed to the corresponding phosphonates in almost
Reaction of HppE with Substrate Analogues: Evidence for Carbon–Phosphorus Bond Cleavage by a Carbocation Rearrangement
作者:Wei-chen Chang、Steven O. Mansoorabadi、Hung-wen Liu
DOI:10.1021/ja403441x
日期:2013.6.5
(S)-2-hydroxypropylphosphonic acid ((S)-2-HPP) epoxidase (HppE) is an unusual mononuclear non-heme iron enzyme that catalyzes the oxidative epoxidation of (S)-2-HPP in the biosynthesis of the antibiotic fosfomycin. Recently, HppE has been shown to accept (R)-1-hydroxypropylphosphonic acid as a substrate and convert it to an aldehyde product in a reaction involving a biologically unprecedented 1,2-phosphono
Deamination of 1-Aminoalkylphosphonic Acids: Reaction Intermediates and Selectivity
作者:Anna Brol、Tomasz K. Olszewski
DOI:10.3390/molecules27248849
日期:——
acids in the reaction with HNO2 (generated "in situ" from NaNO2) yields a mixture of substitution products (1-hydroxyalkylphosphonic acids), elimination products (vinylphosphonic acid derivatives), rearrangement and substitution products (2-hydroxylkylphosphonic acids) as well as H3PO4. The variety of formed reaction products suggests that 1-phosphonoalkylium ions may be intermediates in such deamination