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
A practical approach involving decarboxylative arylation of cinnamic acids using aryl triazenes has been developed to accomplish the synthesis of stilbenes. The method employs easily accessible starting materials and features broad substrate scope and functional group tolerance.
Transition-Metal-Free Borylation of Aryltriazene Mediated by BF<sub>3</sub>·OEt<sub>2</sub>
作者:Chuan Zhu、Motoki Yamane
DOI:10.1021/ol302024m
日期:2012.9.7
A practical and simple method for deaminoborylation of aryltriazene with bis(pinacolato)diboron has been developed that is mediated by BF3 center dot OEt2. Various arylboronic esters are prepared in moderate to good yields with this facile transition-metal-free procedure.