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
Disclosed are compounds of Formula 1, including all stereoisomers, N-oxides, and salts thereof,
wherein
E, X, G, J, Z, and Q are as defined in the disclosure.
Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling plant disease caused by a fungal pathogen comprising applying an effective amount of a compound or a composition of the invention.
Alkene 1,3‐Difluorination via Transient Oxonium Intermediates
作者:Alice C. Dean、E. Harvey Randle、Andrew J. D. Lacey、Guilherme A. Marczak Giorio、Sayad Doobary、Benjamin D. Cons、Alastair J. J. Lennox
DOI:10.1002/anie.202404666
日期:2024.7.22
diastereoselective hypervalentiodine-mediated 1,3-difluorination of homoallylic (aryl) ethers. The transformation proceeds through a transiently formed oxonium intermediate that is opened by fluoride to rearrange an alkyl chain. The protocol is scalable and tolerates a variety of functional groups and substitution on the alkenyl chain. Mechanistic studies reveal key insights into the reaction selectivity.