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V. A. Petrosyan E. E. Nifant M. E. Nryazymbetov R. K. Magdeeva N. S. Magomedova V. K. Bel My 《Russian Chemical Bulletin》1996,45(2):427-429
Benzylation ofcis2-hydro-2-oxo-4-methyl-1,3,2-dioxaphosphorinane in the electro-chemical version of the Michaelis-Becker reaction occurs stereospecifically with retention of the stereochemistry of the hydrophosphoryl center and affords stereochemically pure 2-benzyl-2-oxo-4-methyl-1,3,2-dioxaphosphorinane (yield 60–70 %). The structure of this compound was determined by X-ray diffraction analysis. The mechanism of the process was discussed.Translated fromIzvestiya Akademii Nauk. Seriva Khimicheskaya, No. 2, pp. 444–446, February, 1996. 相似文献
85.
用乙二胺作模板剂在水热条件下合成出一个新的三维开放骨架结构的亚磷酸铟[In2(HPO3)4]·(NH3CH2CH2NH3)(1), 并对其晶体结构进行了测定和表征. 相似文献
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Oleg Artyushin Evgenii Goryunov Konstantin Lyssenko Gerd-Volker Röschenthaler György Keglevich 《Journal of organometallic chemistry》2006,691(26):5547-5559
The synthetic approaches to cyclic phosphite and amido(diamido)phosphite ligands bearing the residues of electron withdrawing perfluorinated tails at the β-position to the phosphorus atom have been elaborated. Catalytic systems based on rhodium complexes of these ligands formed in situ using Rh(CO)2(acac) as a catalytic precursor demonstrate high activity in the hydroformylation of styrene along with good selectivity in respect to branched aldehyde. Quantum-chemical calculations proved that both the rate of the formation of branched alkyl complex, as well as its reactivity are influenced by the steric and electronic parameters in the same manner. 相似文献
88.
Yu Wang Jihong Yu Yi Li Yu Du Ruren Xu Ling Ye 《Journal of solid state chemistry》2003,170(2):303-307
Employing trans-1,4-diaminocyclohexane (trans-1,4-DACH) as a template, a new two-dimensional layered zinc phosphite (C6H16N2)Zn3(HPO3)4H2O (1) has been prepared hydrothermally. Single-crystal X-ray diffraction analysis shows that it crystallizes in the monoclinic space group P21/n with a=10.458(2) Å, b=14.720(3) Å, c=13.079(3) Å, β=97.93(3)°, V=1994.1(7) Å3, Z=4, R1=0.0349 (I>2σ(I)) and wR2=0.0605 (all data). The inorganic layer is built up by alternation of ZnO4 tetrahedra and HPO3 pseudo pyramids forming a 4.6.8-net. The sheet is featured by a series of capped six-membered rings. The diprotonated trans-1,4-DACH molecules reside in the interlayer region and interact with the inorganic network through H-bonds. 相似文献
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Single crystal X-ray diffraction study of glycine phosphite C2H5NO2·H3PO3 was performed (monoclinic, space group P21/c, a = 7.401(3) Å, b = 8.465(3) Å, c = 9.737(3) Å; β = 100.73(5)°, Z = 4). It has been found that one of hydrogen atoms is located at the centre of symmetry forming two strong hydrogen bonds to yield H4P2O 6 ?2 dimers, while another hydrogen atom is statistically disordered over two positions and organizes the dimers into an infinite corrugated chain. The ordering of this hydrogen atom position and/or displacement of the other one from the centre of symmetry will lead to the loss of symmetry centre and lowering of the point group symmetry from C2h to piezo-active group C2 or C s . 相似文献
90.
The consecutive reaction of bis [ 2, 2, 2-trifluoroethyl] phosphite and its application to the one-pot synthesis of 3-cyano-β, γ-unsaturated nitriles with exdusive or predominant E-selectivity (E: Z = 100-85: 0-15) and excellent yields (94%-99%) are described. 相似文献