Continuous Flow Synthesis of <i>N</i>-Sulfonyl-1,2,3-triazoles for Tandem Relay Cu/Rh Dual Catalysis
作者:Yong-Ju Kwon、Sang-gi Lee、Won-Suk Kim
DOI:10.1021/acs.joc.2c02808
日期:2023.1.20
demonstrate the scalability of the process, the reaction was conducted on a 5.4 mmol scale with residence and collection times of 13.09 and 60 min, respectively. Furthermore, a series of controlled experiments were performed to investigate the compatibility of Cu and Rh in a batch or a continuous flowsystem. Finally, the first integrated flowsystem using the azavinyl carbene intermediate under the
N -sulfonyl-1,2,3-triazoles的连续流动合成,这是方便的反应性氮杂乙烯基卡宾前体,用于串联中继 Cu / Rh 双催化已经开发。在 2.5 mol% 的 CuTC 存在下,大多数反应很容易在 75 °C 下以 13.09 分钟的短停留时间进行。通过合成不同功能化的N探索了反应的范围-磺酰基和氨磺酰基三唑,产率在 92% 到 98% 之间。为了证明该过程的可扩展性,反应在 5.4 毫摩尔规模上进行,停留时间和收集时间分别为 13.09 分钟和 60 分钟。此外,还进行了一系列对照实验来研究 Cu 和 Rh 在间歇或连续流动系统中的相容性。最后,开发了第一个在串联中继 Cu/Rh 双催化下使用氮杂乙烯基卡宾中间体的集成流动系统,用于从炔烃和磺酰叠氮化物合成各种顺式-二氨基烯酮。
Synthesis and Reactivity of Sulfamoyl Azides and 1-Sulfamoyl-1,2,3-triazoles
作者:Jeffrey C. Culhane、Valery V. Fokin
DOI:10.1021/ol201705k
日期:2011.9.2
Sulfamoyl azides are readily generated from secondary amines and a novel sulfonyl azide transfer agent, 2,3-dimethyl-1H-imidazolium triflate. They react with alkynes in the presence of a CuTC catalyst forming 1-sulfamoyl-1,2,3-triazoles. The latter are shelf-stable progenitors of rhodium azavinyl carbenes, versatile reactive intermediates that, among other reactions, readily and asymmetrically add
Chan–Lam coupling reaction of sulfamoyl azides with arylboronic acids for synthesis of unsymmetrical <i>N</i>-arylsulfamides
作者:Suk-Young Won、Seo-Eun Kim、Yong-Ju Kwon、Inji Shin、Jungyeob Ham、Won-Suk Kim
DOI:10.1039/c8ra09219b
日期:——
An efficient method was developed for the synthesis of unsymmetrical N-arylsulfamides using sulfamoyl azides and arylboronic acids in the presence of 10 mol% of copper chloride as the catalyst. The reaction was facilitated in MeOH in an open flask at room temperature. Unlike the coupling of sulfamides and boronic acids, the use of sulfamoyl azides was found to be beneficial with respect to the yield