Co-Catalyzed Intramolecular S-N Bond Formation in Water for 1,2-Benzisothiazol-3(<i>2H</i>
)-ones and 1,2,4-Thiadiazoles Synthesis
作者:Liting Yang、Lijuan Song、Shanyu Tang、Longjia Li、Heng Li、Bingxin Yuan、Guanyu Yang
DOI:10.1002/ejoc.201801642
日期:2019.2.14
Sustainable synthesis of 1,2‐benzisothiazol‐3(2H)‐ones and 1,2,4‐thiadiazoles via intramolecular S‐N bond formation were realized in aqueous media with good to excellent yields, which used tetra‐sulfonated cobalt phthalocyanine as a catalyst and molecularoxygen as the environment friendly oxidant.
Microsporum gypseum. Structure‐activity relationships of antimycobacterial activity and antifungal activity against T. mentagrophytes and M. gypseum were analyzed by the Free‐Wilson method. An increase in antimycobacterial activity was observed only for the sulfanylbenzoic acid derivatives, especially those with the benzyl moiety. The antifungal activity was not significant.
Herein, we report an electrochemical method for the synthesis of benzisothiazol-3(2H)-ones from 2-mercaptobenzamides. The electrochemical reaction proceeds through intramolecular NH/SH coupling cyclization reaction by generating H2 as the nonhazardous side product. Moreover, the developed procedure is highly advantageous due to its short reaction time, mild conditions and wide substrate scope without
在此,我们报告了一种从 2-巯基苯甲酰胺合成苯并异噻唑-3(2H)-酮的电化学方法。电化学反应通过分子内 N H/S H 偶联环化反应进行,生成 H 2作为无害副产物。此外,该方法反应时间短,条件温和,底物范围广,无需使用金属催化剂和外源性氧化剂。2009 Elsevier Ltd. 版权所有。
Novel cyclic compound having quinolylalkylthio group
申请人:Kawashima Kenji
公开号:US20080021064A1
公开(公告)日:2008-01-24
The present invention relates to a synthesis study of novel cyclic compounds having a quinolylalkylthio group represented by the formula (1), and pharmacological actions of the compounds.
In the formula, the ring X represents:
which may have halogen and/or alkyl; R
1
and R
2
independently represent hydrogen, alkyl, cycloalkyl, aryl or a (non) aromatic heterocycle; R
3
represents qinolyl; A represents sulfur, sulfinyl or sulfonyl; and B represents alkylene.