Ionic Liquid Promoted Diazenylation of <i>N</i>-Heterocyclic Compounds with Aryltriazenes under Mild Conditions
作者:Dawei Cao、Yonghong Zhang、Chenjiang Liu、Bin Wang、Yadong Sun、Ablimit Abdukadera、Haiyan Hu、Qiang Liu
DOI:10.1021/acs.orglett.6b00605
日期:2016.5.6
aryltriazenes using Brønsted ionicliquid as a promoter has been developed for the first time. Many N-heterocyclic azo compounds were synthesized in good to excellent yields at roomtemperature under an open atmosphere. Notably, the promoter 1,3-bis(4-sulfobutyl)-1H-imidazol-3-ium hydrogen sulfate could be conveniently recycled and reused with the same efficacies for at least four cycles.
Suzuki–Miyaura cross-coupling reaction of 1-aryltriazenes with arylboronic acids catalyzed by a recyclable polymer-supported N-heterocyclic carbene–palladium complex catalyst
作者:Guangming Nan、Fang Ren、Meiming Luo
DOI:10.3762/bjoc.6.70
日期:——
cross-coupling reaction of 1-aryltriazenes with arylboronicacidscatalyzed by a recyclable polymer-supported Pd-NHC complex catalyst has been realized for the first time. The polymer-supported catalyst can be re-used several times still retaining high activity for this transformation. Various aryltriazenes were investigated as electrophilic substrates at roomtemperature to give biaryls in good to excellent