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N. I. Andreeva A. V. Kuchin L. M. Khalilov G. A. Tolstikov 《Russian Chemical Bulletin》1989,38(8):1715-1720
The reaction of ,-dichloro- and ,-diacetoxysulfides with dialkyl-Z-alkenylalanes has been studied; reaction occurs under mild conditions with retention of Z-configuration in the double bond. The reaction represents a stereospecific method for the synthesis of cyclic Z-homoallyl sulfides. The corresponding cycloalkanes and cycloalkenes can be obtained from these Z-homoallylic sulfides by desulfurization with Li in ethylamine or with Raney nickel.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 8, pp. 1869–1874, August 1989. 相似文献
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Summary The following unsatmated organoaluminum compounds were prepared in the form of ether complexes: tri-allylaluminum, tri-2-butenylaluminum, tri-3-butenylaluminum, and tri-4-pentenylaluminum.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1222–1225, July, 1964 相似文献
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I. R. Ramazanov R. N. Kadikova U. M. Dzhemilev 《Russian Journal of Organic Chemistry》2013,49(3):321-326
Alkenylalumanes prepared by carbo-or cycloalumination of substituted acetylenes reacted with an equivalent amount of sulfonyl halide (MsCl, TsCl, PhSO2Cl, MsBr) in methylene chloride or hexane at room temperature to produce alkenyl halides in high yields. Electron-donor solvents such as diethyl ether or tetrahydrofuran inhibited the halogenation process. β-Substituted vinylalumanes generated by hydroalumination of substituted acetylenes failed to react with sulfonyl halides. 相似文献
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O. S. Vostrikova Yu. T. Gafarova V. A. Dokichev S. S. Zlotskii 《Russian Chemical Bulletin》1999,48(8):1530-1532
Ethylene acetals and ethylene ketals undergo reductive scission under the action of Bui
2AlH in the presence of catalytic amounts of ZrCl4. With Et3Al and Bui
3Al, reductive alkylation also occurs.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 8, pp. 1550–1552 August, 1999. 相似文献
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《Journal of organometallic chemistry》2011,696(26):4179-4183
Cationic dialkylaluminum and m-terphenylalkylaluminum compounds catalyze the intramolecular hydroamination of primary and secondary aminopentenes. The reaction rates are strongly dependent on the substrate and the catalyst substituents. The bulky species [Dipp1AlEt][CHB11H5I6] (Dipp1 = 2,6-Dipp2C6H3–, Dipp = 2,6-iPr2C6H3–), 4, was the most active catalyst. Although the neutral species DcpAlEt2 (Dcp = 2,6-(2,6-Cl2C6H3)2C6H3–), 7, and Dipp1AlEt2, 8, showed some catalytic activity, they were more than 25 times less reactive than their cationic counterparts [DcpAlEt][CHB11H5Cl6], 3, and 4. The cyclization of secondary benzylaminopentenes with [Et2Al][CHB11H5I6], 1, was strongly dependent on the substitution of the C-2 olefinic carbon. 相似文献
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Cationic dialkylaluminum and m-terphenylalkylaluminum compounds catalyze the intramolecular hydroamination of primary and secondary aminopentenes. The reaction rates are strongly dependent on the substrate and the catalyst substituents. The bulky species [Dipp1AlEt][CHB11H5I6] (Dipp1 = 2,6-Dipp2C6H3–, Dipp = 2,6-iPr2C6H3–), 4, was the most active catalyst. Although the neutral species DcpAlEt2 (Dcp = 2,6-(2,6-Cl2C6H3)2C6H3–), 7, and Dipp1AlEt2, 8, showed some catalytic activity, they were more than 25 times less reactive than their cationic counterparts [DcpAlEt][CHB11H5Cl6], 3, and 4. The cyclization of secondary benzylaminopentenes with [Et2Al][CHB11H5I6], 1, was strongly dependent on the substitution of the C-2 olefinic carbon. 相似文献
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A. A. Volkov S. S. Zlot-skii É. Kh. Kravets L. V. Spirikhin D. L. Rakhnankulov 《Chemistry of Heterocyclic Compounds》1985,21(8):861-863
Organoaluminum compounds react with 4-methyl-2-phenyl-1,3-dioxane with cleavage of the O1-C2 bond to give monoethers with a primary alcohol group.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 8, pp. 1036–1037, August, 1985. 相似文献
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Summary Cyclopropane hydrocarbons are formed in good yields by the thermal decomposition of the products of the addition of dialkylaluminum hydrides to substituted alkyl allyl ethers. 相似文献
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M. B. Molotovshchikova V. A. Dodonov G. N. Lysenko S. K. Ignatov A. G. Razuvaev 《Russian Chemical Bulletin》1995,44(10):1827-1831
Interaction between organoaluminum compounds (triethylaluminum, ethoxydiethylaluminum, and diethoxyethylaluminum) and the surface of silica activated at various temperatures (200–800 °C) was studied by IR spectroscopy, mass spectrometry, and quantum chemistry. Formation of structural silanon defects on the surface of silica activated at 800 °C was considered. It was established that the fraction of terminal silanol groups involved in the interaction with organoaluminum compounds on the surface of silica thermoactivated above 600 °C is low, and siloxane bonds and structural surface defects play a determining role. The thermodynamic favorability of coordination of organoaluminum compounds on these active surface centers is shown. The structure and routes of decomposition of aluminum-containing surface intermediates were studied.Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1906–1911, October, 1995.The work was financially supported by the Russian Foundation for Basic Research (Project No. 94-03-08847). 相似文献
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Hydroalumination of olefins with lithium aluminum hydride followed by treatment with various allylic halides in presence of a catalytic amount of copper(I) chloride resulted in coupling. This new development provides a simple operational method for lengthening the carbon chain of olefins. 相似文献
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I. Yu. Chukicheva I. V. Fedorova A. A. Koroleva A. V. Kuchin 《Chemistry of Natural Compounds》2012,48(4):535-540
Alkylation of aluminum phenolate by nerol and of phenol by nerol in the presence of the organoaluminum compounds aluminum phenolate and aluminum isopropylate was studied. The reaction products were isolated and characterized. Several features of the process were determined. It was found that ortho-substitution of the aromatic ring occurred primarily. In several instances nerol was cyclized. The fraction of allyl rearrangement was insignificant. 相似文献
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Keisuke Suzuki Eiji Katayama Takashi Matsumoto Gen-ichi Tsuchihashi 《Tetrahedron letters》1984,25(34):3715-3718
Reductive pinacol-type rearrangement of chiral α-mesyloxy ketones was effected by organoaluminums (DIBAL in combination with Et3Al or Et2AlCl) leading to enantiomerically pure 2-aryl- or 2-alkenyl-1-propanols. 相似文献