5925-78-0Relevant academic research and scientific papers
Synthesis of Selenolates from Stannyl and Silyl Alkylselenides
Krief, Alain,Badaoui, Elie,Dumont, Willy
, p. 8521 - 8522 (1993)
Stannyl and silyl alkylselenides have been efficiently transformed to the corresponding alkylselenolates on reaction with butyllithiums.Other conditions proved to be limited.
FeCl3-Diorganyl dichalcogenides promoted cyclization of 2-alkynylanisoles to 3-chalcogen benzo[ b ]furans
Gay, Rafaela M.,Manarin, Flavia,Schneider, Caroline C.,Barancelli, Daniela A.,Costa, Michael D.,Zeni, Gilson
supporting information; experimental part, p. 5701 - 5706 (2010/10/03)
A general synthesis of 3-chalcogen benzo[b]furans from the readily available 2-alkynylanisoles, via FeCl3/diorganyl dichalcogenides intramolecular cyclization, has been developed. Aryl and alkyl groups directly bonded to the chalcogen atom were used as cycling agents. The results revealed that the reaction significantly depends on the electronic effects of substituents in the aromatic ring bonded to the selenium atom of the diselenide species. We observed that the pathway of reaction was not sensitive to the nature of substituents in the aromatic ring of anisole since both the electron-donating and the electron-withdrawing groups delivered the products in similar yields. In addition, the obtained heterocycles were readily transformed to more complex products by using a chalcogen/lithium exchange reaction with n-BuLi followed by trapping of the lithium intermediate with aldehydes, furnishing the desired secondary alcohols in good yields.
Synthesis and molecular structures of dialkylselenonium methylide complexes of indium tribromide
De Andrade, Fabiano Molinos,Massa, Werner,Peppe, Clovis,Uhl, Werner
, p. 1294 - 1299 (2007/10/03)
The reaction of bromomethyl-dibromo-indium(III), Br2InCH 2Br with dialkylselenides, R1SeR2 (R 1 = CH3, R2 = CH2C6H 5; R1 = C2H5, R2 = CH2C6H5; R1 = R2 = CH2C6H5) afforded the corresponding dialkylselenonium methylide complexes of indium tribromide, Br 3InCH2SeR1R2, which were fully characterized by NMR spectroscopy and single crystal X-ray diffraction studies.
Experimental and theoretical studies on the nature of weak nonbonded interactions between divalent selenium and halogen atoms
Iwaoka, Michio,Katsuda, Takayuki,Komatsu, Hiroto,Tomoda, Shuji
, p. 321 - 327 (2007/10/03)
(Chemical Equation Presented). To investigate the nature of weak nonbonded selenium...halogen interactions (Se...X interactions; X = F, Cl, and Br), three types of model compounds [2-(CH2X)C6H 4SeY (1-3), 3-(CH2
Convenient transformation of benzyl alcohol into its corresponding selenide using the selenolate anion-aluminum chloride combination system
Abe, Hitoshi,Yamasaki, Akira,Fujii, Hiroyuki,Harayama, Takashi
, p. 2223 - 2226 (2007/10/03)
Treatment of benzyl alcohol with a new reagent system, benzene- or methaneselenolate anion-aluminum chloride, yielded the corresponding selenide. The one-pot conversion of benzaldehyde into benzyl selenide was also achieved by this system.
Reactions of Dialkyl(aryl) Diselenides with Alkyl(aryl) 2,2-Dichlorovinyl Sulfides under Conditions of Phase-Transfer Catalysis as a Route to Alkyl(aryl)thioacetylenes and 1-Alkyl(aryl)thio-1,2-bis-2-chloroethenes
Martynov, A. V.,Kozyreva, O. B.,Mirskova, A. N.
, p. 469 - 477 (2007/10/03)
Phase-transfer reactions between dialkyl(aryl) diselenides R'SeSeR' and alykl(aryl) 2,2-dichlorovinyl sulfides RSCH=CCl2, catalyzed by benzyltributylammonium chloride and 18-crown-6, yields alkyl(aryl)thioacetylenes RSCCSR', (Z)- and
SELENYLATION OF TRI- AND TETRACHLOROETHYLENE BY ORGANIC DISELENIDES UNDER CONDITIONS OF PHASE-TRANSFER CATALYSIS
Martynov, A. V.,Mirskova, A. N.,Voronkov, M. G.
, p. 1602 - 1608 (2007/10/02)
The selenylation of tetrachloroethylene by organic diselenides under the conditions of phase-transfer catalysis leads to the formation of 1,2-bis(organoseleno)-1,2-dichloroethylenes in 50percent solution of sodium hydroxide and to a mixture of trichlorovi
SYNTHESIS OF SELENOACETALS
Clarembeau, M.,Cravador, A.,Dumont, W.,Hevesi, L,Krief, A.,et al.
, p. 4793 - 4812 (2007/10/02)
This paper reports our results concerning the syntheses of various bis(alkylseleno)alkanes and some of their arylseleno analogues by different methods.The scope and limitation of each of them are presented.
NOVEL SYNTHESIS OF TERTIARY ALKYL, SECONDARY AND TERTIARY BENZYL, AND ALLYL SELENIDES FROM THE CORRESPONDING ALCOHOLS
Clarembeau, M.,Krief, A.
, p. 3625 - 3628 (2007/10/02)
We report an efficient synthesis of the title compounds from alcohols and selenols.The scope and limitations of the new method are disclosed.
