[EN] NOVEL AZOLES AND RELATED DERIVATIVES AS NON-NUCLEOSIDE REVERSE TRANSCRIPTASE INHIBITORS (NNRTIS) IN ANTIVIRAL THERAPY (HIV) [FR] NOUVEAUX AZOLES ET DÉRIVÉS APPARENTÉS À TITRE D'INHIBITEURS NON NUCLÉOSIDIQUES DE TRANSCRIPTASE INVERSE (NNRTIS) EN THÉRAPIE ANTIVIRALE (VIH)
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
Efficient Multigram Approach to Acetylenes and CF
<sub>3</sub>
‐ynones Starting from Dichloroalkenes Prepared by Catalytic Olefination Reaction (COR)
作者:Vasiliy M. Muzalevskiy、Zoia A. Sizova、Arstan I. Diusenov、Alexey V. Shastin、Valentine G. Nenajdenko
DOI:10.1002/ejoc.202000531
日期:2020.7.23
Efficient two step approach towards terminal acetylenes was elaborated. At the first step, dichloroalkenes were prepared in up to 88 % yields by catalytic olefination reaction COR of arylaldehydes. Treatment of dichloroalkenes with n BuLi effectively led to the corresponding alkynes in up to 97 % yield. A versatile one pot procedure towards CF3‐ynones was elaborated to give these products in up to
NaOH-promoted reaction of 1,1-dihaloalkenes and 1<i>H</i>-azoles: synthesis of dihetaryl substituted alkenes
作者:Chen Zhang、Yu-Long Shi、Li-Yu Zhang、Dong-Peng Yuan、Meng-Tao Ban、Jia-Yao Zheng、Deng-Hui Liu、Shun-Na Guo、Dong-Mei Cui
DOI:10.1039/c8nj02756k
日期:——
An efficient NaOH-promoted synthesis of dihetaryl substituted alkenes from 1,1-dihaloalkenes and 1H-azoles under mild conditions has been developed. The reaction occurred in moderate to good yields and tolerated aliphatic, heterocyclic, and aryl substituted 1,1-dihaloalkenes containing functionalities such as nitriles, ethers, and halogens. Imidazoles and triazoles also afforded the desired products
Carbontetrachloride is no longer used as a common solvent due to its toxicity and harmful environmental impact. The synthesis of gem-dichloroalkenes from aldehydes by using triphenylphosphine typically requires carbontetrachloride as a solvent. We report that stoichiometric bromotrichloromethane in acetonitrile can be used in place of solvent quantities of carbontetrachloride in this transformation
作者:V. G. Nenajdenko、A. V. Shastin、V. N. Korotchenko、E. S. Balenkova
DOI:10.1023/a:1011377504491
日期:——
A new general one-pot preparative method for the synthesis of 1-aryl(hetaryl)-2,2-dichloroethenes from aldehydes was developed. The method involves successive conversions of the latter into hydrazones followed by treatment with carbon tetrachloride in the presence of copper(I) chloride.