Nickel-Catalyzed Monofluoroalkylation of Arylsilanes via Hiyama Cross-Coupling
作者:Yun Wu、Hao-Ran Zhang、Yi-Xuan Cao、Quan Lan、Xi-Sheng Wang
DOI:10.1021/acs.orglett.6b02803
日期:2016.11.4
first example of nickel-catalyzed monofluoroalkylation of arylsilanes has been developed with readily available fluoroalkyl halides. This novel transformation has demonstrated high reactivity, broad substrate scope, excellent functional group tolerance, and mild reaction conditions. The selective activation of a relatively inert C–Si bond for slow release of aryl carbanion is the key reason for reducing
Palladium-Catalyzed Cross-Coupling of Ethyl α-Bromo-α-fluoroacetate with Arylboronic Acids: Facile Synthesis of α-Aryl-α-fluoroacetates
作者:Feng-Ling Qing、Chen Guo、Xuyi Yue
DOI:10.1055/s-0029-1218740
日期:2010.6
Palladium-catalyzed Suzuki-Miyaura coupling reactions of ethyl α-bromo-α-fluoroacetate with various structurally diverse arylboronicacids using a phosphine ligand proceeded smoothly to afford α-aryl-α-fluoroacetates in moderate to good yields. This method provides a practical and efficient route to diverse α-monofluorinated α-arylcarbonyl compounds. cross coupling - fluorinated compounds - boronic
Nickel‐Catalyzed Cross‐Coupling of Ethyl Chlorofluoroacetate with Aryl Bromides
作者:Han Li、Jie Sheng、Bing‐Bing Wu、Yan Li、Xi‐Sheng Wang
DOI:10.1002/asia.202100348
日期:2021.7.5
A combinatorial nickel-catalyzed monofluoroalkylation of aryl bromides with the industrial raw regent ethyl chlorofluoroacetate has been developed. The two key factors to successful conversion are the combination of nickel with readily available nitrogen and phosphine ligands and the using of a mixture of different solvents. Mechanistic investigations indicated a new zinc regent might generated in situ
Palladium‐Catalyzed Monofluoroalkylation of Aryl Iodides and Aryl Bromides with Nucleophilic Ethyl 2‐Fluoro‐2‐(trimethylsilyl)acetate
作者:Kaiting Zheng、Yaomei Liu、Chenggong Zheng、Fangpei Yan、Hua Xiao、Yi‐Si Feng、Shilu Fan
DOI:10.1002/adsc.202101309
日期:2022.3.15
A palladium-catalyzed monofluoroalkylation of aryliodides and arylbromides was developed using nucleophilic ethyl 2-fluoro-2-(trimethylsilyl)acetate as a monofluoroalkyl source. The transformation proceeded with excellent substrate scope to afford a range of monofluoroalkylated products in good yields under mild conditions, and it proved feasible in a gram-scale reaction. This protocol was successfully
Nickel-Catalyzed Monofluoromethylation of Aryl Boronic Acids
作者:Yi-Ming Su、Guang-Shou Feng、Zhen-Yu Wang、Quan Lan、Xi-Sheng Wang
DOI:10.1002/anie.201412026
日期:2015.5.11
Arylboronicacids can be monofluoromethylated under nickel catalysis. The utility of this method is demonstrated by the monofluoromethylation of a borylated and acyl‐protected derivative of the statin drug ezetimibe. Mechanistic investigations indicate that a fluoromethyl radical is involved in the NiI/NiIII catalytic cycle.
芳基硼酸可以在镍催化下被单氟甲基化。他汀类药物依泽替米贝的硼酸化和酰基保护衍生物的单氟甲基化证明了该方法的实用性。机理研究表明,氟甲基参与了Ni I / Ni III催化循环。