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A. N. Pudovik É. S. Batyeva V. A. Al'fonsov M. D. Mizhiritskii 《Russian Chemical Bulletin》1978,27(1):189-191
Conclusions The reaction of 2-N-phenylamino-1,3,2-dioxaphospholane with phenyl isocyanate proceeds to give N,N-bis(1,3,2-dioxaphospholanyl)phenylamine and diphenylurea due to the reversible disproportionation of the starting amidophosphite to N,N-bis(1,3,2-dioxaphospholanyl)phenyl-amine and aniline.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 216–218, January, 1978. 相似文献
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T. N. Sinyashina V. F. Mironov E. N. Ofitserov I. V. Konovalova A. N. Pudovik 《Russian Chemical Bulletin》1989,38(8):1755-1757
The reaction of 2-tert-butoxy-4,5-benzo-1,3,2-dioxaphospholane with tribromo-acetaldehyde proceeds by initial halophilic attack on the bromine atom, leading to a product with retention of the P-Br bond (pyrocatechol bromophosphate) and an anion exchange product (pyrocatechol dibromovinylphosphate), and by initial attack at the carbon atom of the C=O group, which is accompanied by the elimination of isobutylene to form an -hydroxyphosphonate.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1909–1912, August, 1989. 相似文献
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The reactions of 2-dimethylamino-, 2-methoxy-, 2-chloro-4,5-dimethyl-1,3,2-dioxaphos-pholanes with 4-thiocyanato-2-butanol in all cases yield 2-(1-methyl-3-thiocyanatopropoxy)-4,5-dimethyl-1,3,2-dioxaphospholane. The latter reacts with elemental sulfur to form the corresponding thiophosphate.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 12, pp. 2130–2131, December, 1993. 相似文献
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N. K. Gusarova S. I. Verkhoturova S. N. Arbuzova T. I. Kazantseva A. I. Albanov A. M. Nalibaeva G. K. Bishimbaeva 《Russian Journal of Organic Chemistry》2017,53(11):1623-1629
Polyfluoroalkyl dichlorophosphates easily react with 1,2- or 1,3-alkanediols in a system pyridine–diethyl ether and afford 2-polyfluoroalkoxy-1,3,2-dioxaphospholane oxides or 2-polyfluoroalkoxy-1,3,2-dioxaphosphorinane oxides. In similar conditions the reaction of methyl dichlorophosphate with 1,2- and 1,3-alkanediols proceeds less effectively. 相似文献
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The reaction of N-butylisobutyraldimine with trimethyliodosilane obtained in situ proceeds to give N-butyl-N-isobutenylaminotrimethylsilane, which reacts with 4,5-benzo-2-chloro-1,3,2-dioxaphospholane to yield 2-(N-butyl-N-isobutenylamino)-4,5-benzo-1,3,2-dioxaphospholane.A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Science Center, Russian Academy of Sciences, 420083 Kazan. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 8, pp. 1923–1924, August, 1992. 相似文献
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Conclusion The reaction of 2-[N,N-bis(trimethylsilyl)]amino-4,5-benzo-1,3,2-dioxaphospholane with acetyl and benzoyl chlorides leads to the formation of silicon-containing diazadiphospheti-dines.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 939–940, April, 1986. 相似文献
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A calculation was carried out for the normal mode frequencies and forms of 2-bromo- and 2-chloro-1,3,2-dioxarsenanes. Gaseous electron diffraction was used to determine the ra structure of 2-chloro-1,3,2-dioxarsenane. In accord with the results of other physical measurements, we established the chair conformation with axial orientation of the bromine atom.A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Branch, Academy of Sciences of the USSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 30, No. 5, pp. 55–60, September–October, 1989. 相似文献
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Certain five-membered dioxaheterocyclic compounds (hetero atoms may be P, Si, S, etc.) contain a strained carbon–carbon bond
which may undergo homolytic thermolysis at modest temperatures to generate a diradical capable of initiating vinyl polymerization.
If substituents contain flame-retarding moieties this represents a convenient method for imparting flame retrdancy to a polymeric
material. Of particular interest has been 2,4,4,5,5-pentaphenyl-1,3,2-dioxaphospholane. The thermal degradation of this compound
has been studied using 13C NMR spectroscopy. This may conveniently be done by monitoring the intensity of the signal for the benzylic carbon atom as
a function of time and temperature. A simple transformation is the conversion of the cyclic compound to the linear polymer. 相似文献
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The reaction of pyrocatechol chlorophosphite with N-trimethylsilylacetamide gave 2-acetamido-4,5-benzo-1,3,2-dioxaphospholane. The reaction of this product with hexamethyldisilazane leads to 2-trimethylsiloxy-4,5-benzo-1,3,2-dioxaphospholane, while its reactions with diethylamine, trimethylsilyldiethylamine, and bis(dimethylamino)methane give 2-dialkylamino-4,5-benzo-1,3,2-dioxaphospholanes.A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Branch, Russian Academy of Sciences, 420008 Kazan. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 1, pp. 220–222, January, 1992. 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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K. N. Gavrilov I. V. Chuchelkin S. V. Zheglov M. N. Gavrilova E. A. Rastorguev V. A. Davankov 《Russian Chemical Bulletin》2011,60(10):2117-2119
Phosphorylation of (S)-1,1,2-triphenylethane-1,2-diol furnishes cyclic P*-chiral amidophosphite, whose application as a ligand in the Pd-catalyzed allyl substitution in 1,3-diphenylallyl acetate provides the products ee up to 70%. 相似文献
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T. E. Glotova A. S. Nakhmanovich G. G. Skvortsova N. S. Mabarakshina 《Russian Chemical Bulletin》1985,34(4):778-781
Conclusions The reaction of o-aminothiophenol with 2-benzoyl- or 2-thenoyl-1-bromoacetylenes gives, depending on conditions, hydrobromides of 1-acyl-2-(2-aminophenylthio)acetylenes and 1,1-bis(2-aminophenylthio)-2-acylethylenes. The latter can act as ligands in the formation of coordination complexes of metals (Co, Cu, Zn, Cd).Deceased.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 858–861, April, 1985. 相似文献
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T. E. Glotova A. S. Nakhmanovich T. N. Komarova M. V. Sigalov 《Russian Chemical Bulletin》1988,37(11):2376-2377
Conclusions The reactions of 1-bromo-2-acylacetylenes with thiobenzhydrazide at from –10 to –30°C in ether, acetonitrile, methanol without catalyst, or methanol in the presence of triethylamine gave 2-acylmethyl-5-phenyl-1,3,4-thiadiazoles and their hydrobromide salts.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 11, pp. 2637–2638, November, 1988. 相似文献
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Alfons L. Baumstark Morgan Barrett Kathleen M. Kral 《Journal of heterocyclic chemistry》1982,19(1):201-203
The reaction of tetramethyl-1,2-dioxetane ( 1 ) and triphenylphosphine ( 2 ) in benzene-d6 produced 2,2-dihydro-4,4,5,5-tetramethyl-2,2,2-triphenyl-1,3,2-dioxaphospholane ( 3 ) in ?90% yield over the temperature range of 6–60°. Pinacolone and triphenylphosphine oxide ( 4 ) were the major side products [additionally acetone (from thermolysis of 1 ) and tetramethyloxirane ( 5 ) were noted at the higher temperatures]. Thermal decomposition of 3 produced only 4 and 5 . Kinetic studies were carried out by the chemiluminescence method. The rate of phosphorane was found to be first order with respect to each reagent. The activation parameters for the reaction of 1 and 2 were: Ea ? 9.8 ± 0.6 kcal/mole; ΔS≠ = ?28 eu; k30° = 1.8 m?1sec?1 (range = 10–60°). Preliminary results for the reaction of 1 and tris (p-chlorophenyl)phosphine were: Ea ? 11 kcal/mole, ΔS≠ = ?24 eu, k30° = 1.3 M?1sec?1 while those for the reaction of 1 and tris(p-anisyl)phosphine were: Ea ? 8.6 kcal/mole, ΔS≠ = ?29 eu, k30° = 4.9 M?1 sec?1. 相似文献