Palladium(II)-Catalyzed Intramolecular Diamination of Alkynes under Aerobic Oxidative Conditions: Catalytic Turnover of an Iodide Ion
作者:Bo Yao、Qian Wang、Jieping Zhu
DOI:10.1002/anie.201201640
日期:2012.5.21
“I” did it: A sequential intramolecular amination/N‐demethylation/amidation of internal acetylenes in the presence of a catalytic amount of Pd(OAc)2 and nBu4NI afforded indolo[3,2‐c]isoquinolinones under mild aerobic conditions (see scheme, DMSO=dimethyl sulfoxide). The iodide ion was regenerated by reaction of in situ generated MeI with HOAc present in the reaction mixture.
“我”做到了:在催化量的Pd(OAc)2和n Bu 4 NI存在下,通过顺序进行分子内胺化/ N-去甲基化/内部乙炔酰胺化,在轻度需氧条件下提供了吲哚[3,2- c ]异喹啉酮条件(参见方案,DMSO =二甲基亚砜)。通过原位生成的MeI与反应混合物中存在的HOAc反应,可再生碘离子。