Copper-Catalyzed Intermolecular Functionalization of Unactivated C(sp<sup>3</sup>)–H Bonds and Aliphatic Carboxylic Acids
作者:Runze Mao、Srikrishna Bera、Aurélya Christelle Turla、Xile Hu
DOI:10.1021/jacs.1c05874
日期:2021.9.15
unactivated C(sp3)–H bonds and aliphatic carboxylic acids. The process is enabled by the trapping of alkyl radicals generated through hydrogenatomabstraction by arylsulfonyl-based SOMO-philes, which introduces a large array of C, N, S, Se, and halide-based functional groups. The chemoselectivity can be switched from C–H functionalization to decarboxylative functionalization by matching the bond dissociation
We describe Cu-catalyzed intermolecular alkynylation and allylation of unactivated C(sp3)–H bonds with singly occupied molecular orbital-philes (SOMO-philes) via hydrogen atom transfer (HAT). Employing N-fluoro-sulfonamide as a HAT reagent, a set of substituted alkene and alkyne compounds were synthesized in high yields with good regioselectivity and functional-group compatibility. Late-stage functionalization
Addition to “Copper-Catalyzed Intermolecular Functionalization of Unactivated C(sp<sup>3</sup>)–H Bonds and Aliphatic Carboxylic Acids”
作者:Runze Mao、Srikrishna Bera、Aurélya Christelle Turla、Xile Hu
DOI:10.1021/jacs.1c10082
日期:2021.10.20
Supporting Information. In the original Supporting Information, the synthesis and characterization of compounds 4a and 4b were inadvertently omitted. This information has been added. The Supporting Information is available free of charge at https://pubs.acs.org/doi/10.1021/jacs.1c10082. Experimental procedures and compound characterization (PDF) Experimental procedures and compound characterization
Asymmetric Copper-Catalyzed Intermolecular Aminoarylation of Styrenes: Efficient Access to Optical 2,2-Diarylethylamines
作者:Dinghai Wang、Lianqian Wu、Fei Wang、Xiaolong Wan、Pinhong Chen、Zhenyang Lin、Guosheng Liu
DOI:10.1021/jacs.7b02455
日期:2017.5.24
After addition to styrene, the generated benzylic radical could couple with a chiral L*CuIIAr complex to achieve enantioselective arylation. Various optical 2,2-diarylethylamines were efficiently synthesized from simple styrenes with high enantioselectivity, and these products can serve as valuablesynthons toward bioactive molecules' synthesis.
To provide a method for producing a difluoro compound highly selectively in good yield without forming a hardly soluble by-product. An ester compound of the formula (1) is reacted and fluorinated with an electrophilic fluorinating agent in the presence of a basic compound and in the absence of a metal compound reactant to produce a difluoro ester compound of the formula (2).
wherein R
1
is a C
1-30
alkyl group which may have a substituent, etc., and R
2
is a C
1-30
hydrocarbon group which may have a substituent, or R
1
and R
2
are bonded to form an alkylene group which forms, together with —C—C(O)—O—, a lactone ring.