Ring Expansion and Rearrangements of Rhodium(II) Azavinyl Carbenes
作者:Nicklas Selander、Brady T. Worrell、Valery V. Fokin
DOI:10.1002/anie.201207820
日期:2012.12.21
regioselective, and convergent method for the ring expansion and rearrangement of 1‐sulfonyl‐1,2,3‐triazoles under rhodium(II)‐catalyzed conditions is described. These denitrogenative reactions form substituted enaminone and olefin‐based products (see scheme). The enaminone products can be further functionalized to give various heterocycles and ketonederivatives, thus rendering the sulfonyl triazole traceless
扩展空间:描述了一种在铑 (II) 催化条件下进行 1-磺酰基-1,2,3-三唑环扩展和重排的有效、区域选择性和收敛方法。这些脱氮反应形成取代的烯胺酮和基于烯烃的产物(参见方案)。烯胺酮产物可以进一步官能化,得到各种杂环和酮衍生物,从而使磺酰三唑变得无痕。
연속 흐름 공정을 이용한 설포닐 또는 설파모일 트라이아졸계 화합물의 제조 방법
申请人:Ewha University - Industry Collaboration Foundation 이화여자대학교 산학협력단(220040083301) BRN ▼110-82-10456
公开号:KR20190119509A
公开(公告)日:2019-10-22
연속 흐름 공정을 이용한 설포닐 또는 설파모일 트라이아졸계 화합물의 제조 방법에 관한 것이다.
这是关于利用连续流程制备硫代磺酰基或硫代磷아미드三唑类化合物的方法。
Copper-Catalyzed Cycloaddition of Sulfonyl Azides with Alkynes to Synthesize<i>N</i>-Sulfonyltriazoles ‘on Water’ at Room Temperature
作者:Feng Wang、Hua Fu、Yuyang Jiang、Yufen Zhao
DOI:10.1002/adsc.200800291
日期:2008.8.4
We have developed a green and practical method for the Huisgen cycloaddition of water-insoluble sulfonyl azides with alkynes ‘on water’ at roomtemperature under catalysis of the inexpensive catalyst system CuX/PhSMe, and addition of the ligand (thioanisole) greatly inhibited cleavage of the N1N2 bond in the 5-cuprated N-sulfonyltriazole intermediates to amides and improved the yields of N-sulfonyltriazoles
An efficient room-temperature method for the synthesis of 1-sulfonyl-1,2,3-triazoles from in situgeneratedcopper(I) acetylides and sulfonyl azides is described. The copper(I) thiophene-2-carboxylate (CuTC) catalyst produces the title compounds under both nonbasic anhydrous and aqueous conditions in good yields.