CX (X=Br, I) Bond-Tolerant Aerobic Oxidative Cross- Coupling: A Strategy to Selectively Construct β-Aryl Ketones and Aldehydes
作者:Mao Chen、Jie Wang、Ziyi Chai、Cai You、Aiwen Lei
DOI:10.1002/adsc.201100782
日期:2012.2
aryl halide-containing β-aryl ketones and aldehydes can be synthesized directly from readily available allyic alcohols and boronic acids via palladium-catalyzedoxidativecross-coupling reactions. The dual roles of copper, including electron-carrier and Lewis acid functions, are supposed to be critical for the high reactivity and selectivity of this aerobic oxidative coupling transformation.
Carboxyl-Directed Conjugate Addition of C−H Bonds to <i>α</i>
,<i>β</i>
-Unsaturated Ketones in Air and Water
作者:Wen-Jing Han、Fan Pu、Chao-Jun Li、Zhong-Wen Liu、Juan Fan、Xian-Ying Shi
DOI:10.1002/adsc.201701468
日期:2018.4.3
removable carboxyl group was developed as an effective protocol to synthesize ortho‐alkylated benzoic acids in a greener manner. Without any additives, satisfactory to excellent yields of the targeted products were achieved in neat water, and the process characterizes in mild reaction conditions (in air and water), simple operations, and broadsubstratescope. Noteworthy features of this method include
Ligand-Enabled γ-C(sp<sup>3</sup>)–H Hydroxylation of Free Amines with Aqueous Hydrogen Peroxide
作者:Zhen Li、Jin-Quan Yu
DOI:10.1021/jacs.3c09340
日期:2023.12.6
of primary amines (1°), piperidines, and morpholines (2°) were hydroxylated at the γ-position with excellent monoselectivity. This method provides an avenue for the synthesis of a wide range of amines, including γ-amino alcohols, β-amino acids, and azetidines. The retention of chirality in the reaction allows rapid access to chiral amines starting from the abundant chiral amine pool.