<i>N</i>-Difluoromethylthiophthalimide: A Shelf-Stable, Electrophilic Reagent for Difluoromethylthiolation
作者:Dianhu Zhu、Yang Gu、Long Lu、Qilong Shen
DOI:10.1021/jacs.5b03170
日期:2015.8.26
A new, electrophilic difluoromethylthiolating reagent N-difluoromethylthiophthalimide 3 was developed. Reagent 3 can be readily synthesized in four steps from easily available starting materials phthalimide and TMSCF2H. N-difluoromethylthiophthalimide 3 is a powerful electrophilic difluoromethylthiolating reagent that allows the difluoromethylthiolation of a wide range of nucleophiles including aryl/vinyl
2‐Sulfonylpyrimidines were identified to inhibit the enzymatic activity of the kinesinHSET by covalently targetingcysteine residues and to induce multipolar mitoses and oxidative stress, thus emphasizing the pleiotropic effects of these alkylating agents in cells.
Synthesis of highly substituted 1,3-dienes, 1,3,5-trienes, and 3,6-disubstituted cyclohexenes by the palladium-catalyzed coupling of organic halides, internal alkynes or 1,3-cyclohexadienes, and organoboranes
作者:Xiaoxia Zhang、Richard C. Larock
DOI:10.1016/j.tet.2010.03.119
日期:2010.6
A number of highly substituted 1,3-dienes and 1,3,5-trienes have been stereoselectively prepared in moderate to good yields by the coupling of vinylic iodides, internal alkynes, and organoboranes in the presence of a palladium catalyst. Optimal reaction conditions for different organoboron substrates have been developed. The analogous three-component coupling of aryl halides, 1,3-cyclohexadiene, and
Copper-Catalyzed Cross-Coupling of Vinyliodonium Salts and Zinc-Based Silicon Nucleophiles
作者:Liangliang Zhang、Martin Oestreich
DOI:10.1021/acs.orglett.8b03714
日期:2018.12.21
A silylation of vinyliodonium salts using zinc-based silicon reagents as nucleophiles is reported. This cross-coupling is catalyzed by copper, and vinylsilanes are obtained in high yield likely following a Cu(I)/Cu(III) reaction mechanism. The procedure is operationally simple, neither air- nor moisture-sensitive, and tolerant of a range of functional groups. The new method is an addition to the still
Directed Markovnikov hydroarylation and hydroalkenylation of alkenes under nickel catalysis
作者:Zi-Qi Li、Omar Apolinar、Ruohan Deng、Keary M. Engle
DOI:10.1039/d1sc03121j
日期:——
Native Lewis basic functional groups enable the nickel-catalyzed Markovnikov-selective hydroarylation and hydroalkenylation of unactivated alkenes with organoboron reagents.