Syntheses of N-phenylaminomethylenediphosphonic and -diphosphinic acids and their derivatives
作者:A. A. Prishchenko、M. V. Livantsov、O. P. Novikova、L. I. Livantsova
DOI:10.1134/s1070363209090230
日期:2009.9
aminomethylene diphosphorus-containing compounds are of interest as prmising ligands and biologically active substances [1]. Some of compounds of this type can be obtained by suitable methods using dialkylformamide dialkylacetals [2]. Aiming to synthesize new N-aminomethylenediphosphorus compounds we examined a reaction of some of trimethylsilyl phosphites and hypophosphites taken in excess with the corresponding
取代的氨基亚甲基二磷化合物作为有前景的配体和生物活性物质是令人感兴趣的 [1]。这种类型的一些化合物可以通过合适的方法使用二烷基甲酰胺二烷基缩醛[2]获得。为了合成新的 N-氨基亚甲基二磷化合物,我们检查了一些过量的亚磷酸三甲基甲硅烷基酯和次磷酸盐与相应的乙氧基亚甲基亚胺 I 和甲脒 IV 的反应,类似于前面描述的程序 [3]。因此,乙氧基亚甲基亚胺 I 与(三甲基甲硅烷基)磷酸二乙酯和亚磷酸二乙酯的混合物以及三(三甲基甲硅烷基)磷酸酯和双(三甲基甲硅烷基)磷酸酯的混合物在 140-160oC 反应形成二膦酸盐 II 和 III。在氯化锌中,制备化合物 III 需要催化剂(参见 [4])。DOI: 10.1134/S1070363209090230
Bis(trifluoroacetyl)phenols and their derivatives in reactions with selected phosphorus(III) compounds
作者:Dmitri V. Sevenard、Ralf‐Matthias Schoth、Olesya Kazakova、Enno Lork、Gerd‐Volker Röschenthaler
DOI:10.1002/hc.20451
日期:2008.7
The reactivity of bis(trifluoroacetyl)-phenols toward selected λ3P derivatives was examined. In the case of dialkyl(isocyanato)phosphites, only one of both present trifluoracetyl moieties of substrate was involved. After addition of the phenolic OH moiety across the intermediary formed PN bond, tri-, tetra-, and pentacyclic α-(trifluoromethyl)phosphoranes were produced in a highly diastereoselective
Synthesis of Optically Active 2-(<i>tert</i>-Butyloxycarbonylamino)-4-dialkoxyphosphorylbutanoate Protected Isosteres of<i>O</i>-Phosphonoserine for Peptide Synthesis
作者:R. M. Valerio、P. F. Alewood、R. B. Johns
DOI:10.1055/s-1988-27707
日期:——
The preparation of (S)-2-(tert-butoxycarbonylamino) -4-dialkoxyphosphorylbutanoate from (S)-aspartic acid is described.
描述了从(S)-天冬氨酸制备(S)-2-(叔丁氧羰基氨基)-4-二烷氧基磷酰丁酸酯的过程。
Reactions of trimethylsilyl phosphites with anhydrides of phthalic and 2-sulfobenzoic acids
作者:A. A. Prishchenko、M. V. Livantsov、O. P. Novikova、L. I. Livantsova、V. S. Petrosyan
DOI:10.1134/s1070363212110278
日期:2012.11
organometallic synthesis [1]. Previously, we have developed a number of convenient methods for the synthesis of the functionalized phosphorus amides of isoand terephthalic acids [2]. In this work we studied the reactions of trimethylsilyl phosphites with phthalic and 2-sulfobenzoic anhydrides and showed that different results of these reactions were determined by different reactive precursors. Thus
作者:A. B. Uryupin、I. A. Rakhov、V. A. Kolesova、P. V. Petrovskii、T. A. Mastryukova、M. I. Kabachnik
DOI:10.1007/bf00697149
日期:1994.9
Treatment of N-trimethylsilyllactams with phosphoryl chlorides results in mixtures of products, whose formation can be explained by competition between N- and O-phosphorylation.