Cp*Ir<sup>III</sup>
-Catalyzed [3+2] Annulations of <i>N</i>
-Aryl-2-aminopyrimidines with Sulfoxonium Ylides to Access 2-Alkyl Indoles Through C-H Bond Activation
A novel synthesis of 2‐alkyl indoles that uses N‐aryl‐2‐aminopyrimidines and sulfoxonium ylides was developed. It is an efficient and mild method for the synthesis of 2‐alkyl indoles. environmentally friendly solvents, efficient alternative carbenoid precursors, and novel catalyst system were used to complete this reaction. Many different directing groups can be used in this process, and the reaction
Fors, Brett P.; Davis, Nicole R.; Buchwald, Stephen L., Journal of the American Chemical Society, 2009, vol. 131, p. 5766 - 5768
作者:Fors, Brett P.、Davis, Nicole R.、Buchwald, Stephen L.
DOI:——
日期:——
Nickel-Catalyzed Photoredox-Mediated Cross-Coupling of Aryl Electrophiles and Aryl Azides
作者:Mikhail O. Konev、T. Andrew McTeague、Jeffrey W. Johannes
DOI:10.1021/acscatal.8b02954
日期:2018.10.5
dual catalytic nickel/ruthenium system from aryl azides and arylelectrophiles. Photoreduction of the aryl azide is proposed to proceed through an arylnickel-azide complex, which upon reduction and loss of nitrogen, generates a nickel(III) species capable of facile reductive elimination to afford the desired C–N bond formation. A variety of functionalized (hetero)arylelectrophiles are shown to participate
Cobalt-Catalyzed Regioselective Ortho C(sp<sup>2</sup>)-H Bond Nitration of Aromatics through Proton-Coupled Electron Transfer Assistance
作者:Desaboini Nageswar Rao、Sk. Rasheed、Gaurav Raina、Qazi Naveed Ahmed、Chaitanya Kumar Jaladanki、Prasad V. Bharatam、Parthasarathi Das
DOI:10.1021/acs.joc.7b00808
日期:2017.7.21
A cobalt-catalyzed proton-coupled electron transfer (PCET) mediated regioselective ortho-specific nitration of aromatic C(sp2)-H bonds using chelation-assisted removable vicinal diamine directing groups was developed. The reaction proceeded under mild conditions in the presence of Co(OAc)2·4H2O as the catalyst with AgNO2 utilized as the nitro source as well as terminal oxidant in the presence of O2