Palladium-catalyzed cross-coupling reaction of azides with isocyanides
作者:Zhen Zhang、Zongyang Li、Bin Fu、Zhenhua Zhang
DOI:10.1039/c5cc05981j
日期:——
A palladium-catalyzed cross-coupling reaction of azides with isocyanides is developed, providing a general synthetic route to unsymmetric carbodiimides.
INHIBITION AND DISPERSION OF BACTERIAL BIOFILMS WITH IMIDAZOLE-TRIAZOLE DERIVATIVES
申请人:Melander Christian
公开号:US20090263438A1
公开(公告)日:2009-10-22
Disclosure is provided for imidazole-triazole derivative compounds that prevent, remove and/or inhibit the formation of biofilms, compositions comprising these compounds, devices comprising these compounds, and methods of using the same.
A New Multicomponent Multicatalyst Reaction (MC)<sup>2</sup>R: Chemoselective Cycloaddition and Latent Catalyst Activation for the Synthesis of Fully Substituted 1,2,3-Triazoles
A multicomponent multicatalyst reaction (MC)2R for constructing fully substituted1,2,3-triazoles is reported. An application of chemoselectivity and latent catalysis in a sequence of multicatalytic reactions confers control over a number of undesired processes, where all of the reagents coexist in the same reaction vessel. The sequence of a chemoselective copper-catalyzed azide alkyne cycloaddition
Phosphine-Based Redox Catalysis in the Direct Traceless Staudinger Ligation of Carboxylic Acids and Azides
作者:Andrew D. Kosal、Erin E. Wilson、Brandon L. Ashfeld
DOI:10.1002/anie.201206533
日期:2012.11.26
Redoxcatalysis: Aryl amides, imides, lactams, and dipeptides are obtained through a directStaudingerligation mediated by phosphine‐based redoxcatalysis (see scheme). Mechanistic studies indicate the involvement of a phosphonium carboxylate intermediate that leads to a 1,3‐acyl migration and thus results in CN bond formation.
Copper(I)-Catalyzed Three-Component Coupling of<i>N</i>-Tosylhydrazones, Alkynes and Azides: Synthesis of Trisubstituted 1,2,3-Triazoles
作者:Zhikun Zhang、Qi Zhou、Fei Ye、Ying Xia、Guojiao Wu、Mohammad Lokman Hossain、Yan Zhang、Jianbo Wang
DOI:10.1002/adsc.201500377
日期:2015.7.6
The copper(I)‐catalyzed three‐component reaction of N‐tosylhydrazones, terminal alkynes and azides has been realized in an efficient and regioselective manner. This reaction constitutes a convenient method for the synthesis of 1,4,5‐trisubstituted 1,2,3‐triazoles from simple starting substrates. Mechanistically, the reaction involves the trapping of the copper(I) triazolide intermediate to form a copper