627-51-0Relevant academic research and scientific papers
Degradation of Sulfur Mustard on KF/Al2O3: The Role of Organic Solvents and Active Species
Fridkin, Gil,Columbus, Ishay,Yehezkel, Lea,Zafrani, Yossi
, p. 10541 - 10545 (2018/07/25)
Solvent effects on the ability of KF/Al2O3 supports to degrade the warfare agent sulfur mustard (HD) were explored. RP-KF/Al2O3 possessing hydroxide ions and ECUF/KF/Al2O3 holding fluoride
Facile hydrolysis-based chemical destruction of the warfare agents VX, GB, and HD by alumina-supported fluoride reagents
Gershonov,Columbus,Zafrani
supporting information; experimental part, p. 329 - 338 (2009/04/10)
(Chemical Equation Presented) A facile solvent-free hydrolysis (chemical destruction) of the warfare agents VX (O-ethyl S-2-(diisopropylamino)ethyl methylphosphonothioate), GB (O-isopropyl methylphosphonofluoridate or sarin), and HD (2,2′-dichloroethyl sulfide or sulfur mustard) upon reaction with various solid-supported fluoride reagents is described. These solid reagents include different alumina-based powders such as KF/Al2O3, AgF/KF/Al2O3, and KF/Al2O3 enriched by so-called coordinatively unsaturated fluoride ions (termed by us as ECUF-KF/Al2O3). When adsorbed on these sorbents, the nerve agent VX quickly hydrolyzed (t1/2 range between 0.1-6.3 h) to the corresponding nontoxic phosphonic acid EMPA as a major product (>90%) and to the relatively toxic desethyl-VX (1/2 range between 2.2-161 h). The reaction rates and the product distribution were found to be strongly dependent on the nature of the fluoride ions in the KF/Al2O 3 matrix and on its water content. All variations of the alumina-supported fluoride reagents studied caused an immediate hydrolysis of the highly toxic GB (t1/2 31P, 13C, and 19F MAS NMR.
DIVINYL SULFIDE. XIV. DIVINYL SULFIDE AND SULFUR-CONTAINING HETEROCYCLES FROM VINYL HALIDES AND SODIUM SULFIDE
Trofimov, B. A.,Amosova, S. V.,Nosyreva, V. V.,Voronkov, M. G.
, p. 2123 - 2127 (2007/10/02)
The reaction of vinyl halides with hydrated sodium sulfide in the potassium hydroxide-DMSO (HMDTA) superbasic system leads to the formation of divinyl sulfide, 2,5-dimethyl-4-methylene-1,3-oxathiolane, 2,4,5-trimethyl-1,3-oxathiole, and 2-thiabicyclohept-3-ene and also dimethyl sulfide, vinyl methyl sulfide, and vinyl ethyl sulfide.The effect of the reaction conditions (temperature, solvent, time, and ratio of reagents) on the yield of the products and the selectivity of the process was studied.
REACTION OF ETHYLTRITHIOCARBONATE AND TRITHIOCARBONATE IONS WITH ACETYLENES
Ivanova, N. I.,Sigalov, M. V.,Amosova, S. V.,Trofimov, B. A.
, p. 451 - 454 (2007/10/02)
When heated with phenylacetylene in aqueous THF, potassium ethyltrithiocarbonate forms 1-phenyl-1-ethylthioethene in addition to cis-1-phenyl-2-ethylthioethene.The reaction takes place in DMSO, dioxane, benzene, and ethanol.It was established that cis-1-phenyl-2-ethylthioethene is formed exclusively in DMSO and 1-phenyl-1-ethylthioethene is formed in benzene.The reaction of potassium trithiocarbonate with ethylene in DMSO leads to divinyl sulfide.
SINGLE-STAGE SYNTHESIS OF VINYL SULFIDES FROM HALOGEN DERIVATIVES, ACETYLENES, AND SODIUM SULFIDE
Nosyreva, V. V.,Amosova, S. V.,Trofimov, B. A.
, p. 1770 - 1774 (2007/10/02)
The vinylthiylation of halogen-containing compounds by acetylenes in the presence of sodium sulfide was realized.The effect of the ratio of ethylene chlorohydrin and sodium sulfide, the concentration of water, the order in which the initial reagents are mixed, and the reaction temperature on the yield of the vinyl sulfides was investigated.
HYDRATION TRIMERIZATION OF ACETYLENE IN SUPERBASIC MEDIA. I. SYNTHESIS OF 2-VINYLOXY-1,3-BUTADIENE AND IDENTIFICATION OF THE SIDE PRODUCTS
Tarasova, O. A.,Amosova, S. V.,Trofimov, B. A.
, p. 1795 - 1801 (2007/10/02)
In the superbasic potassium hydroxide-dimethyl sulfoxide (DMSO) or potassium hydroxide-triethylphosphine oxide medium at 105 - 145 deg C acetylene undergoes trimerization with the capture of a water molecule to form 2-vinyloxy-1,3-butadiene with yields up to 43percent (the KOH-K3PO4-DMSO system).The following side products are formed (in DMSO): cis-vinyl 1-propenyl ether; 3-vinyloxy-1,2-butadiene; 1,2-di(vinyloxy)propane; 3-ethyl- and 4-ethyl-vinyloxybenzenes; benzene; toluene; vinyl methyl sulfide; divinyl sulfide.
NUCLEOPHILIC ADDITION OF SULFIDE AND THIOACETATE IONS TO ACETYLENES IN THE (C2H5)3PO-KOH SYSTEM
Trofimov, B. A.,Amosova, S. V.,Al'pert, M. L.,Musorin, G. K.
, p. 998 - 1001 (2007/10/02)
A study was carried out on the reaction of acetylene, phenylacetylene and vinylacetylene with sodium sulfide, thioacetic acid, and water (in the case of acetylene) in a triethylphosphine oxide-KOH superbase system.In the nature of its effect on the nucleophilic addition to acetylenes, the triethylphosphine oxide-KOH system is similar to the dimethylsulfoxide-KOH and hexamethylphosphorotriamide-KOH systems.
DIVINYL SULFIDE VIII. REACTIONS OF ACETYLENE WITH HYDROGEN SULFIDE IN ALKALI-DIMETHYL SULFOXIDE AND ALKALI-HEXAMETHYLPHOSPHOROTRIAMIDE SYSTEMS
Trofimov, B. A.,Amosova, S. V.,Kryuchkov, V. V.,Vasil'tsov, A. M.
, p. 1839 - 1841 (2007/10/02)
The reaction of acetylene with hydrogen sulfide in the alkali-metal hydroxide-dimethyl sulfoxide system, leading to divinyl sulfide, was realized.A preparative method was developed for the production of ethyl hydrosulfide from acetylene and hydrogen sulfide in the alkali-metal hydroxide-hexamethylphosphorotriamide system.
