- Unexpected reaction of 2-chloro-1-propen-3-yl isothiuronium chloride with potassium ditelluride: the first example of vicinal elimination of chlorine and sulfur-bearing moieties
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2-Chloro-1-propen-3-yl isothiuronium chloride reacts with potassium ditelluride in hydrazine hydrate to afford elemental tellurium and allene. The latter is formed due to the vicinal elimination of chlorine and a sulfur-bearing moiety.
- Levanova, Ekaterina P.,Grabelnykh, Valentina A.,Elaev, Alexander V.,Albanov, Alexander I.,Klyba, Lyudmila V.,Russavskaya, Natalia V.,Tarasova, Olga A.,Rozentsveig, Igor B.,Korchevin, Nikolai A.
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p. 505 - 511,7
(2020/09/16)
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- Physicochemical properties of benzoic acid N,N-dialkylhydrazides
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Benzoic acid N,N-dialkylhydrazides of the general formula C 6H5C(O)NHNR2, R = C4H9, C6H13, C8H17, C10H 21, were obtained,. Their solubility, acid-base properties, stability against hydrolysis, distribution between organic and water phases were studied.
- Gusev,Radushev,Vaulina,Batueva
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p. 940 - 943
(2011/04/16)
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- Physicochemical properties of 2-ethylhexanoic acid N′,N′- dialkylhydrazides
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The following characteristics of 2-ethylhexanoic acid N′,N′- dialkyl(C4-C8)hydrazides relevant to their potential application as Cu(II) extractants were studied: solubility, acid-base properties, resistance to hydrolysis, loss with the aqueous phase, and distribution ratio in relation to the composition of the medium and length of alkyl chains. Nauka/Interperiodica 2006.
- Radushev,Batueva,Gusev
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p. 1196 - 1200
(2008/02/03)
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- Reduction of Nitrosamines with Aqueous Titanium Trichloride: Convenient Preparation of Aliphatic Hydrazines
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The reduction of selected nitrosamines by aqueous TiCl3 has been investigated.In general, aliphatic nitrosamines were converted in good yield to the corresponding hydrazines, with little overreduction to the amines.Reaction proceeded rapidly at room temperature in both alkaline and acidic media.A variety of N,N-dialkylhydrazines have been isolated by using the TiCl3 method, which compares favorably with previously reported procedures for preparatively converting nitrosamines to hydrazines.In the reduction of N-nitroso-N-methylaniline, the proportion of amine in the product increased significantly as the pH of the reaction mixture was lowered, presumably reflecting the known instability of arylalkylnitrosamines in strong acid, coupled with a ready reducibility of the corresponding Fischer-Hepp intermediates; some tendency toward reductive cleavage of the N-aryl-N-alkylhydrazine's N-N-bond was also noted.Reduction of an α-nitrosamino ether gave the monoalkylhydrazine as the major product, while all other reducing agents studied converted this starting material chiefly to a mixture of primary and secondary amines.
- Lunn, George,Sansone, Eric B.,Keefer, Larry K.
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p. 3470 - 3473
(2007/10/02)
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