Cobalt-Catalyzed Markovnikov-Selective Radical Hydroacylation of Unactivated Alkenes with Acylphosphonates
作者:Benxiang Zhang、Jiayan He、Yi Li、Tao Song、Yewen Fang、Chaozhong Li
DOI:10.1021/jacs.1c02629
日期:2021.4.7
Acylphosphonates having the 5,5-dimethyl-1,3,2-dioxophosphinanyl skeleton are developed as efficient intermolecular radical acylation reagents, which enable the cobalt-catalyzed Markovnikov hydroacylation of unactivatedalkenes at room temperature under mild conditions. The protocol exhibits broad substrate scope and wide functional group compatibility, providing branched ketones in satisfactory yields
Formation of C(sp<sup>3</sup>
)-C(sp<sup>3</sup>
) Bonds through Nickel-Catalyzed Decarboxylative Olefin Hydroalkylation Reactions
作者:Xi Lu、Bin Xiao、Lei Liu、Yao Fu
DOI:10.1002/chem.201602486
日期:2016.8.1
Olefins and carboxylic acids are among the most important feedstock compounds. They are commonly found in natural products and drug molecules. We report a new reaction of nickel‐catalyzed decarboxylative olefin hydroalkylation, which provides a novel practical strategy for the construction of C(sp3)−C(sp3) bonds. This reaction can tolerate a variety of synthetically relevant functional groups and shows
Nickel-Catalyzed Enantioconvergent Reductive Hydroalkylation of Olefins with α-Heteroatom Phosphorus or Sulfur Alkyl Electrophiles
作者:Shi-Jiang He、Jia-Wang Wang、Yan Li、Zhe-Yuan Xu、Xiao-Xu Wang、Xi Lu、Yao Fu
DOI:10.1021/jacs.9b09415
日期:2020.1.8
bond formation reactions have been made in recent years through the use of transition-metal-catalyzed cross-couplingreactions of racemic secondary alkyl electrophiles with organometallic reagents. Herein, we report a general process for the asymmetric construction of alkyl-alkyl bonds adjacent to heteroatoms, namely, a nickel-catalyzed enantioconvergent reductive hydroalkylation of olefins with α-heteroatom
Atom-Transfer Radical Addition to Unactivated Alkenes by using Heterogeneous Visible-Light Photocatalysis
作者:Liang-Liang Mao、Huan Cong
DOI:10.1002/cssc.201701382
日期:2017.11.23
photocatalyst titanium dioxide in the presence of a catalytic hypervalent iodine(III) reagent has been found as an effective method to initiate a broad range of atom-transfer radicaladdition reactions to unactivated alkenes under mild and heavy metal-free conditions.
Copper‐Catalyzed Carbotrifluoromethylation of Unactivated Alkenes Driven by Trifluoromethylation of Alkyl Radicals
作者:Zhenzhen Zhang、Lin Zhu、Chaozhong Li
DOI:10.1002/cjoc.201900075
日期:2019.5
We report herein an unprecedented protocol for radical carbotrifluoromethylation of unactivatedalkenes. With Cu(OTf)2 as the catalyst, the reaction of unactivatedalkenes, TMSCF3 and activated alkyl chlorides at room temperature provides the corresponding carbotrifluoromethylation products in satisfactory yields. Directed by trifluoromethylation of alkyl radicals, the method exhibits an excellent