Divergent Reaction of Isocyanides with <i>o</i>-Bromobenzaldehydes: Synthesis of Ketenimines and Lactams with Isoindolinone Cores
作者:Yi-Ming Zhu、Yizhan Fang、Haiyan Li、Xiao-Ping Xu、Shun-Jun Ji
DOI:10.1021/acs.orglett.1c02422
日期:2021.10.1
A divergent reaction of isocyanides with o-bromobenzaldehydes for the synthesis of isoindolinone-derived ketenimines and lactams was disclosed. The reaction features readily available reactants, relatively mild conditions, and high yields of products. Ketenimines could be applied in further transformations for access to other functional molecules. A mechanism study showed that the palladium-migration/imine-insertion
Iodine/Water-Mediated Oxidation of<i>o</i>-Alkynylaroyl Compounds and Application of the Products of Oxidation in the Synthesis of Nitrogen Heterocycles
作者:Karuppusamy Sakthivel、Kannupal Srinivasan
DOI:10.1002/ejoc.201300046
日期:2013.6
facile iodine/water-mediated oxidation of the triple bond of o-alkynylaroyl compounds to furnish tricarbonyl compounds is reported. The reaction proceeds through the formation of isochromenol intermediates by the assistance of the neighbouring aroyl group. The product tricarbonyl compounds are versatile synthetic precursors that, upon treatment with mono- and diamines, hydrazines and amino alcohols, afford