Ligand-Enabled γ-C(sp<sup>3</sup>)–H Activation of Ketones
作者:Ru-Yi Zhu、Zi-Qi Li、Han Seul Park、Chris H. Senanayake、Jin-Quan Yu
DOI:10.1021/jacs.8b01359
日期:2018.3.14
are identified to enable C(sp3)-H activation for the first time. A rare six-membered palladacycle intermediate is isolated and characterized to elucidate the reaction mechanism. Both (hetero)arylation and vinylation of γ-C(sp3)-H bonds are demonstrated. Sequential β- and γ-C(sp3)-H (hetero)arylation of muscone showcases the utility of this method for late-stagediversification. A convenient Mn(II)-catalyzed
Reactions of alpha,beta-unsaturated acylzirconocene chloride with nucleophiles showed novel bimodal reactivity at the beta- and acyl carbons depending upon the nucleophile employed, and the formation of ketone alpha,beta-dianionic species was also observed. (C) 2000 Elsevier Science Ltd. All rights reserved.