applicable to wide-range of cyclopropanes, and proceeds under neutral and mild conditions. A nitrogen-based directing group controls the reactivity of hydrosilanes as well as the regiochemistry of carbon-carboncleavage and hydrosilylation. This is a rare example of catalytic transformation of electronically unactivated cyclopropanes, which do not have conjugated substituents or directly substituted heteroatoms
A Bioinspired Organocatalytic Cascade for the Selective Oxidation of Amines under Air
作者:Martine Largeron、Maurice-Bernard Fleury
DOI:10.1002/chem.201701402
日期:2017.5.17
organocatalytic cascade reaction for the selective aerobicoxidative cross-coupling of primary amines to imines is described. This approach takes advantages of commercially available pyrogallol monomeric precursor to deliver low loadings of natural purpurogallin in situ, under air. This is further engaged in a catalytic process with the amine substrate affording, under single turnover, the active biomimetic quinonoid
Catalytic Oxidative Coupling of Primary Amines under Air: A Flexible Route to Benzimidazole Derivatives
作者:Khac Minh Huy Nguyen、Martine Largeron
DOI:10.1002/ejoc.201501520
日期:2016.2
inspired by copper amineoxidases, we disclose herein the scope and factors influencing the success of the cooperative action of CuBr2 as electron-transfer mediator and a topaquinone-like substrate-selective catalyst in the oxidative cyclocondensation of primary amines with o-aminoanilines. This one-pot atom-economic multistep process, which works under green conditions with ambient air as the terminal
A Bioinspired Catalytic Aerobic Oxidative CH Functionalization of Primary Aliphatic Amines: Synthesis of 1,2-Disubstituted Benzimidazoles
作者:Khac Minh Huy Nguyen、Martine Largeron
DOI:10.1002/chem.201502487
日期:2015.9.1
AerobicoxidativeCHfunctionalization of primary aliphatic amines has been accomplished with a biomimetic cooperative catalytic system to furnish 1,2‐disubstituted benzimidazoles that play an important role as drug discovery targets. This one‐pot atom‐economical multistep process, which proceeds under mild conditions, with ambient air and equimolar amounts of each coupling partner, constitutes a