Ionic liquids as a reusable media for copper catalysis. Green access to alkenes using catalytic olefination reaction
作者:Vasily M. Muzalevskiy、Aleksey V. Shastin、Namiq G. Shikhaliev、Abel M. Magerramov、Aytekin N. Teymurova、Valentine G. Nenajdenko
DOI:10.1016/j.tet.2016.09.050
日期:2016.11
It was demonstrated that ionicliquids are superb recyclable media for copper catalyzed reactions using catalytic olefination reaction as an example. As a result a novel green access to the halogenoalkenes was elaborated. Possibility to perform up to five reaction cycles without catalyst leaching and decreasing of the yield was demonstrated. A number of various ionicliquids was screened and 1-buty
The catalytic olefination reaction of aldehydes and ketones with CBr3CF3
作者:Valentine G. Nenajdenko、Georgy N. Varseev、Alexey V. Shastin、Elisabeth S. Balenkova
DOI:10.1016/j.jfluchem.2005.03.020
日期:2005.6
The new approach of catalytic olefination reaction (COR) has been used to convert aromatic and aliphaticaldehydes and ketones to 2-bromo-3,3,3-trifluoroprop-1-enes by the treatment of corresponding hydrazones with CBr3CF3 under copper(I) catalysis conditions. The reaction proceeds stereoselectively, the target alkenes were obtained in good yields.
Fluorohalogeno compounds. I. The grignard reaction of some fluorohalogenoethanes
作者:I. Hemer、A. Pošta、V. Dědek
DOI:10.1016/s0022-1139(00)80974-4
日期:1984.12
An extension of the scope of the Grignardreaction of fluorinated compounds is reported. Fluorohalogenoethanes of the general formula CF3CXYZ ( X = F,Cl,Br ; Y,Z = Cl,Br ) were found to undergo smoothly the metal-halogen exchange reaction with alkyl- or aryl-magnesium halides at low temperature to yield organometallic compounds CF3CXYMgHal. The Grignard compounds were reacted with a series of aldehydes
Copper-Catalyzed Transformation of Hydrazones into Halogenated Azabutadienes, Versatile Building Blocks for Organic Synthesis
作者:Valentine G. Nenajdenko、Alexey V. Shastin、Vladimir M. Gorbachev、Sergey V. Shorunov、Vasiliy M. Muzalevskiy、Anna I. Lukianova、Pavel V. Dorovatovskii、Victor N. Khrustalev
DOI:10.1021/acscatal.6b03196
日期:2017.1.6
A one-step copper-catalyzed reaction of aldehyde-derived N-substituted hydrazones with CCl4 resulted in efficient synthesis of 4,4-dichloro-1,2-diazabuta-1,3-dienes. It was proven that this C–C bond-forming cascade reaction operates via an addition of trichloromethyl radical to the C═N bond of hydrazone followed by a base-induced elimination of HCl. The reaction was found to be very general, as diverse
Synthesis of bis(halovinyl)benzenes by catalytic olefination
作者:V. M. Muzalevskiy、N. G. Shikhaliev、A. M. Magerramov、N. V. Gurbanova、S. D. Geydarova、E. S. Balenkova、A. V. Shastin、V. G. Nenajdenko
DOI:10.1007/s11172-013-0091-4
日期:2013.3
Catalytic olefination of hydrazines of terephthalic and isophthalic aldehydes with polyhaloalkanes afforded the corresponding p- and m-divinylbenzene derivatives bearing halogen atoms and various functional groups at the double bonds. Stereochemical features of the reaction were studied.