Cascade Amination and Acetone Monoarylation with Aryl Iodides by Palladium/Norbornene Cooperative Catalysis
作者:Wai Chung Fu、Bin Zheng、Qingyang Zhao、Wesley Ting Kwok Chan、Fuk Yee Kwong
DOI:10.1021/acs.orglett.7b02023
日期:2017.8.18
cocatalyzed three-component reaction of aryl iodides, O-benzoylhydroxylamines, and acetone is reported. o′-Aminoaryl acetones or o,o′-diaminoaryl acetones are efficiently prepared via tandem ortho-C–H amination/ipso-C–I α-arylation sequence, and the regiospecificity has been confirmed by X-ray analysis. The proposed method addresses the condensation/amination of free-N-H-bearing substrates in acetone
据报道钯/降冰片烯共催化芳基碘,O-苯甲酰羟胺和丙酮的三组分反应。ø '-Aminoaryl丙酮或ø,ö '-diaminoaryl丙酮被有效地通过串联制备邻-C-H胺化/本位-C-Iα芳基化序列,并且区域专一已经通过X-射线分析证实。所提出的方法解决了在丙酮单芳基化中带有游离N -H的底物的缩合/胺化反应,以及极度拥挤的2,6-二取代芳基丙酮的合成。