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1.
The New Data for the Reaction of Arylenedioxy Trihalogenophosphoranes with Alkyl- and Arylacetylenes
Vladimir F. Mironov Alfiya A. Shtyrlina Ravil R. Petrov Tamara A. Baronova Fedor F. Alekseev Elena N. Varaksina 《Phosphorus, sulfur, and silicon and the related elements》2013,188(6-7):1381-1385
The new data concerning the reaction between substituted arylenedioxy trihalogenophosphoranes and monoalkyl- or arylacetylenes are summarized. The reaction leads to formation of six-membered heterocycles-2-oxo-4-R-benzo[ e ]-1,2-oxaphosphorin-3-enes. The substituent effects in the phosphorane and acetylene molecules on the ipso -substitution and halogenation regiochemistry are discussed. The ipso -substitution of tert -butyl group on chlorine and the exchange of bromine on chlorine and iodine on hydrogen have been observed, along with formation of benzophosphorines. The interaction of tetrachloro- ortho -benzoquinone with phosphorus trichloride and arylacetylenes is proposed as a new modification of the reaction leading to the formation of benzo[ e ]-1,2-oxaphosphorines. The structures of some benzo[ e ]-1,2-oxaphosphorines are determined by the single crystal X-ray diffraction. 相似文献
2.
A. R. Bayguzina I. S. Erokhina R. I. Khusnutdinov 《Russian Journal of Organic Chemistry》2017,53(3):359-361
Alkyl biphenyl-4-carboxylates have been synthesized with high selectivity by multicomponent reaction of biphenyl with carbon tetrachloride and aliphatic alcohols in the presence of iron-containing catalysts. 相似文献
3.
Margarita Yu. Vozhdaeva Alfiya R. Kholova Igor A. Melnitskiy Ilya I. Beloliptsev Yulia S. Vozhdaeva Evgeniy A. Kantor Albert T. Lebedev 《Molecules (Basel, Switzerland)》2021,26(7)
The main drawback of drinking water chlorination involves the formation of quite hazardous disinfection by-products (DBPs), represented mainly by halogenated species. Based on the authors’ monitoring data since 2002, the prevalence of chlorine over bromine in the composition of volatile DBPs was shown for the drinking water in Ufa (Russia). However, the situation was completely reversed in the case of semi-volatile DBPs. The principal goal of the present study involved rationalization of the results of the long-term monitoring. Gas chromatography–mass spectrometry (GC-MS) was used for the qualitative and quantitative analysis of volatile DBPs. Identification of semi-volatile compounds was carried out with GC-MS, while gas chromatography with an atomic emission detector (GC-AED) was used for their quantification. A significant contribution of oxygen to the composition of semi-volatile compounds proves the decisive role of the dissolved organic matter oxidative destructive processes. Statistical analysis revealed notable linear correlations for trihalomethane and haloacetic acid formation vs. chlorine dose. On the contrary, halogenated semi-volatile products do not demonstrate any correlations with the water quality parameters or chlorine dose. Principal component analysis (PCA) placed them into separate groups. The results allow for proposing that formation of the organohalogenated species involved the fast penetration of bromine into the humic matter molecules and, further, their oxidative destruction by active chlorine. 相似文献
4.
R. I. Khusnutdinov N. A. Shchadneva A. R. Bayguzina T. M. Oshnyakova Yu. Yu. Mayakova U. M. Dzhemilev 《Russian Journal of Organic Chemistry》2013,49(11):1557-1566
Catalytic chlorination of alkanes, cycloalkanes, and adamantane utilizing tetrachloromethane as the source of chlorine and applying catalysts containing manganese, molybdenum, vanadium, and iron activated with nitrile ligands, alcohols, and water was fulfilled. The optimum ratios of catalysts and reagents and the best reaction conditions were found for selective synthesis of chlorine-substituted hydrocarbons derivatives. 相似文献
5.
R. I. Khusnutdinov A. R. Bayguzina R. I. Aminov 《Russian Journal of General Chemistry》2016,86(7):1613-1618
2-, 4-, 6-, 7-, and 8-substituted quinolines were synthesized in 78–95% yield by the reaction of 1,3- butanediol with anilines in the presence of iron catalysts in carbon tetrachloride. 相似文献
6.
R. I. Khusnutdinov A. R. Bayguzina L. I. Gimaletdinova U. M. Dzhemilev 《Russian Journal of Organic Chemistry》2012,48(9):1191-1196
Copper compounds of the general formula CuX n (X = Cl, Br, I, acac, OAc, C7H4O3, C7H5O2; n = 1, 2) activated by carbon tetrabromide catalyzed intermolecular dehydration of primary and secondary alcohols with formation of the corresponding ethers. 相似文献
7.
R. I. Khusnutdinov A. R. Bayguzina U. M. Dzhemilev 《Russian Journal of Organic Chemistry》2012,48(3):309-348
The review summarizes published data on the use of manganese compounds as catalysts in oxidation of alkanes, alcohols, aldehydes, sulfides, and amines and carbometalation, cross coupling, telomerization, chlorination, hydrosilylation, hydrohydrazination, and other reactions. 相似文献
8.
Russian Journal of General Chemistry - The review summarizes data on modern approaches to N-alkylation of anilines using metal complex and heterogeneous catalysts based on palladium, platinum,... 相似文献
9.
A. R. Bayguzina L. I. Tarisova R. I. Khusnutdinov 《Russian Journal of General Chemistry》2018,88(2):208-215
Alkyl esters of hydroxy-, methoxy-, and ethoxybenzoic and cresotic acids have been synthesized by reaction of phenols, anisole, phenetole, and cresols with carbon tetrachloride and alcohols in the presence of iron catalysts. 相似文献
10.
А. R. Bayguzina L. I. Gimaletdinova R. I. Khusnutdinov 《Russian Journal of Organic Chemistry》2018,54(8):1148-1155
Synthesis of benzyl alkyl ethers was performed in high yields by intermolecular dehydration of benzyl and primary, secondary, tertiary alcohols under the effect of copper containing catalysts. The formation of benzyl alkyl ethers occurs with participation of benzyl cation. 相似文献