Micelle-Enabled Palladium Catalysis for Convenient sp<sup>2</sup>-sp<sup>3</sup> Coupling of Nitroalkanes with Aryl Bromides in Water Under Mild Conditions
作者:Jeremy Brals、Justin D. Smith、Faisal Ibrahim、Fabrice Gallou、Sachin Handa
DOI:10.1021/acscatal.7b02663
日期:2017.10.6
demonstrated with the palladium-catalyzed sp2-sp3 coupling of nitroalkanes to aryl bromides using a heteroleptic palladium catalyst under unprecedentedly mild conditions. Optimized reaction conditions mostly provided good yields up to gram scale, with high selectivity and functional group tolerance for a wide scope of aryl bromides. Use of surfactant FI-750-M makes water the gross reaction medium and enables
An asymmetric sp3–sp3 cross-electrophile coupling using ‘ene’-reductases
作者:Haigen Fu、Jingzhe Cao、Tianzhang Qiao、Yuyin Qi、Simon J. Charnock、Samuel Garfinkle、Todd K. Hyster
DOI:10.1038/s41586-022-05167-1
日期:2022.10.13
XEC between alkyl halides and nitroalkanes catalyzed by flavin-dependent ‘ene’-reductases. Photoexcitation of the enzyme-templated charge-transfer complex between an alkyl halide and flavin cofactor enables the chemoselective reduction of alkyl halide over the thermodynamically favored nitroalkane partner. The key C–C bond-forming step occurs via the reaction of an alkyl radical with an in situ generated