Reaction of amidophosphites with hydrogen chloride

Conclusions The reaction of some mono-, di-, and triamidophosphites with HCl was studied at low temperatures. The amido group is replaced by chlorine in the first step of the reaction, apparently due to protonation of the nitrogen atom of the amidophosphite. The formation of P-protonated products in the case of the monoamidophosphites is due to the disproportionation of dialkyl chlorophosphites in excess HCl.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, September, 1977.     

Reaction of hydrogen chloride with microfibrous filtering materials

Russian Journal of Applied Chemistry - The resistance of microfibrous filtering materials based on cellulose diacetate, polystyrene, and fluoroplastic to prolonged action of high concentratoins of...     

Reaction of 2-methyl-4,5-dihydrofuran with hydrogen chloride

Reaction of 2-methyl-4,5-dihydrofuran with HCl at 0°C yields 5-chloro-2-pentanone (13%) and 1-(2-methyltetrahydrofuryl-2)-5-chloro-2-pentanone (27%) and at 200° 5-chloro-2-pentanone exclusively.N. D. Zelinskii Institute of Organic Chemistry, Russian Academy of Sciences, 117913 Moscow. I. M. Gubkin State Petroleum and Gas Academy, 117917 Moscow. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 9, pp. 2188–2191, September, 1992.     

Photosensitized dehydrochlorination of poly(vinyl chloride). III. Reaction of thermally degraded poly(vinyl chloride) with hydrogen chloride

Films prepared from thermally degraded poly(vinyl chloride) were photolyzed in the presence of hydrogen chloride. When the light was filtered through a Pyrex disk, the absorbance in the region between 270 nm and about 415 nm decreased and reached a minimum value but the absorbance increased at wavelengths shorter than 270 nm and longer than 415 nm. Maximum bleaching occurred at a wavelength which depended on that of the irradiating light. When the Pyrex filter was omitted, an additional slower photodehydrochlorination reaction was superimposed on the photobleaching reaction. Photolysis of hexane or ethanol solutions of 1,8-diphenyloctatetra-1,3,5,7-ene and hydrogen chloride showed a similar reaction involving bleaching of the absorption of the polyene structure. The problems of using absorbance as an indication of the extent of the photodegradation of poly(vinyl chloride) are discussed.     

Reaction of chlorine dioxide with phenol

The kinetics of phenol oxidation with chlorine dioxide in different solvents (2-methylpropan-1-ol, ethanol, 1,4-dioxane, acetone, acetonitrile, ethyl acetate, dichloromethane, heptane, tetrachloromethane, water) was studied by spectrophotometry. In all solvents indicated, the reaction rate is described by an equation of the second order w = k[PhOH]·[ClO₂]. The rate constants were measured (at 10—60 °C), and the activation parameters of oxidation were determined. The reaction rate constant depends on the solvent nature. The oxidation products are a mixture of p-benzoquinone, 2-chloro-p-benzoquinone, and diphenoquinone.     

氟氯烷烃与三氯化铝的反应

Park等从全氟丙烯与三氯化铝的反应产物中,分离出一系列氟氯烯烃,并指出该反应中全氟丙烯氟原子被氯原子取代的次序.CF_2ClCFClCF_2CFCl_2(1)与三氯化铝反应,仅得到CF_2ClCFClCF_2CCl_3,产率58％.我们研究了1及CFCl_2CF_2CFCl_2(2)分别与三氯化铝的反应.由1的反应得CF_     

Reaction of para-nitrophenoxypropynylcopper with benzoyl chloride

Conclusions The reaction of copper p-nitrophenoxypropynylide with benzoyl chloride proceeds with the formation of 1-p-nitrophenoxy-3-benzoylpropadiene, p-nitrophenyl benzoate, and 1,6-bis(p-nitrophenoxy)-2,4-hexadiyne. p-Nitrophenyl benzoate may be obtained as a result of the thermal fragmentation of 1-p-nitro-3-benzoylpropadiene.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2797–2798, December, 1984.     

Reaction of trialkylsilylalkanethiols with benzenesulfonyl chloride

Conclusions Depending on the ratio of the reactants and the reaction temperature, the reaction of benzenesulfonyl chloride with sodium trialkylsilylalkylthiolates R₃Si(CH₂)_nSNa (R=Me, Et; n=1–3) leads either to labile S-phenyl S-trialkylsilylalkyl thiosulfonates or to their mixture with S,S-bis(trialkylsilylalkyl) disulfides.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 204–205, January, 1979.     

Reaction of aluminum chloride with dialkylcyclosiloxanes

Summary During the reaction between aluminum chloride and cyclic dilakylsiloxanes —octamethylcyclotetrasiloxane, octaethylcyclotetrasiloxane, hexamethylcyclotrisiloxane, and hexaethylcyclotrisiloxane —ring opening occurs with the formation of -chloro--dichloroaluminoxydialkylpolysiloxanes, which further split out ,-dichloropolysiloxanes and form cyclic compounds-1-chloro-3,3,5,5-tetramethylcycloaluminoxydisiloxane and 1-chloro-3,3,5,5tetraethylcycloaluminoxydisiloxane. These compounds were separated and characterized in the form of complexes with aluminum chloride.