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Some aspects of phosphorylation of 2,2′-dihydroxy-1,1′-binaphthalene (BINOL) and 1,4∶3,6-dianhydro-d-mannitol (isomannide) were investigated. The possibility of using the corresponding cyclic chloro- and amidophosphites for
the analysis of enantiomeric compositions of chiral primary and secondary alcohols by31P NMR was examined.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 426–431, March, 1998. 相似文献
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Lazarev S. N. Bredikhina Z. A. Bredikhin A. A. 《Russian Journal of General Chemistry》2003,73(6):928-932
The reaction of 2-phenyl-1,3,2-dioxaphospholane with HCl gives a mixture of phenylphosphinic acid, bis(2-chloroethyl) phenylphosphonate, and phenylphosphine; therewith, intermediate oligomeric phosphonites, hydrophosphoryl compounds, and phosphoranes were detected. Thermal treatment of the reaction mixture results in formation of ethylene phenylphosphonate and (2-chloroethyl)phenylphosphinate. 相似文献
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A. A. Bredikhin A. T. Gubaidullin D. B. Krivolapov Z. A. Bredikhina I. A. Litvinov 《Russian Chemical Bulletin》2006,55(7):1137-1145
Racemic and enantiopure cis-and trans-4-(1-naphthyloxy)methyl-2-oxo-1,3,2-dioxathiolanes were studied by X-ray diffraction. The factors responsible for their crystal
packings were revealed. The conformation of the exocyclic fragment varies from synclinal to antiperiplanar depending on both
the local (cis-trans isomerism of the molecule) and external (homochiral/heterochiral environment) stereochemical factors. Data on the structures
of five-membered sulfites in crystals were generalized. It was concluded that the heterocycle has considerable conformational
flexibility.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 7, pp. 1095–1102, July, 2006. 相似文献
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D. R. Sharafutdinova O. B. Bazanova A. A. Murav’ev S. E. Solov’eva Z. A. Bredikhina V. M. Babaev I. S. Antipin 《Journal of Analytical Chemistry》2016,71(14):1352-1359
MALDI mass spectrometry is used for the first time for the rapid assessment of the binding of thiacalix[4]arene-monocrown-ethers with metal cations (Li, Na, K, Cs, Cu, Ag). The work is performed on examples of thiacalix[4]arene-monocrown-ethers in 1,3-alternate conformation with various numbers (m) of ethylene oxide units and various substituents in phenol groups. It is shown that thiacalix[4]arene-monocrown- ethers with m = 3, 4, 5, and 6 bind lithium, sodium, potassium, and cesium cations, respectively; in addition, the binding of cesium cations is stronger in the presence of aromatic substituents in the lower rim of thiacalix[4]arene-monocrown-ethers. Silver cations bind with calixarenes under study more intensely than copper ions. When aromatic substituents are present, the binding of silver cations is stronger than that of alkali metal ions with the studied thiacalix[4]arene-monocrown-ethers. 相似文献
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Alexander A. Bredikhin Zemfira A. Bredikhina Elena I. Strunskaya Nail M. Azancheev 《Phosphorus, sulfur, and silicon and the related elements》2013,188(1)
Abstract The 31P NMR method is intensively used for enantiomeric composition control during the last years [1]. Among all other derivatizing agents the C2-symmetrical ones have some advantages. 相似文献
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