Synthesis and reactivity of substituted α-carbonylphosphonites and their derivatives
作者:Andrey A. Prishchenko、Mikhail V. Livantsov、Olga P. Novikova、Ludmila I. Livantsova、Valery S. Petrosyan
DOI:10.1002/hc.21024
日期:——
Convenient methods for the synthesis of functionalized organophosphorus compounds containing carbonyl groups as well as di- or trialkoxymethyl fragments attached to phosphorus, and their derivatives, starting from the available derivatives of trivalent phosphorus acids, are proposed, and some properties of the new functionalized organophosphorus compounds are presented. So, the alkylation and acylation
Some novel phosphoranides containing pentafluorophenyl groups
作者:Rusmidah Ali、Keith B. Dillon
DOI:10.1039/dt9900002593
日期:——
elemental analysis and (in some cases) i.r. spectroscopy. These ions apart from [P(C6F5)2(CN)Y]–} represent the first simple phosphoranides with an organo-group attached to phosphorus and no cyano-groups present. The species with two pentafluorophenyl groups are the first phosphoranides with two organo-groups directly bound to phosphorus. No acceptor properties towards halide ions were shown by P(CCl3)Cl2
[P(C 6 F 5)X 2 Y] –(X = Cl,Y = Cl,Br或I; X = Br,Y = Br或I; X = NCS, Y = Cl,Br,I或NCS)或[P(C 6 F 5)2 X(Y)] –(X = Cl,Y = Cl,Br或I; X = Br,Y = Br或I ; X = CN,Y = Cl,Br,I或NCS)已通过31 P nmr光谱法在溶液中鉴定。大多数物种已分离为与四烷基铵离子的盐,并通过元素分析和(在某些情况下)红外光谱进一步表征。这些离子除[P(C 6 F 5)2(CN)Y] – }代表第一个简单的磷酰胺,其有机基团与磷相连,并且不存在氰基。具有两个五氟苯基的物质是具有两个直接键合于磷的有机基团的第一磷酰胺。P(CCl 3)Cl 2或P(C 6 F 5)2(NCS)没有显示出对卤离子的受体性质。
The Infrared Spectrum of Chlorophosphaethyne, ClCP
作者:D. Mcnaughton、D.N. Bruget
DOI:10.1006/jmsp.1993.1241
日期:1993.10
Abstract C -Chlorophosphaethyne (ClC P) has been generated by the pyrolysis of Cl 3 CPCl 2 over granulated zinc at 550°C and the high-resolution spectrum in the region 4000-100 cm−1 has been recorded, analyzed, and assigned. Altogether, more than 6500 transitions have been assigned. The observed bands include all three fundamentals as well as a number of overtone, combination, and difference bands
作者:A. A. Yurchenko、A. N. Huryeva、E. V. Zarudnitskii、A. P. Marchenko、G. N. Koidan、A. M. Pinchuk
DOI:10.1002/hc.20550
日期:——
1,2-Disubstitutedimidazoles react with phosphorus(III) halides in pyridine regioselectively at position 5. The reaction proceeds the more readily, the higher the electron-donating ability of the 2-substituent in the starting imidazole. Hitherto unknown dihalo(imidazol-5-yl)phosphines have been obtained, and their properties have been studied. Also synthetic methods for the preparation of various