Mild synthesis of <i>N</i>-acylsulfenamides from arylamides and disulfides
作者:Xing-Song Zhang、Xiao-Hong Zhang
DOI:10.1080/10426507.2015.1012670
日期:2016.1.2
synthesize N-acylsulfenamides via NaH-promoted sulfenylation of benzamides with readily available disulfides under mild conditions. A series of N-acylsulfenamides were easily obtained in moderate to high yields. Moreover, the obtained N-acylsulfenamides were used as thiolating reagents in the synthesis of sulfenylpyrroles and 3-sulfenylbenzofurans.
图形摘要 摘要 开发了一种有效的新方法,通过 NaH 促进苯甲酰胺与易于获得的二硫化物在温和条件下进行磺基化反应来合成 N-酰基次磺酰胺。一系列 N-酰基亚磺酰胺很容易以中等至高产率获得。此外,获得的 N-酰基亚磺酰胺可用作硫基吡咯和 3-硫基苯并呋喃合成中的硫醇化试剂。
Metal-Free Chemoselective <i>S</i>-Arylation of Sulfenamides To Access Sulfilimines
A novel and efficient S-arylation of sulfenamides with diaryliodonium salts for the synthesis of sulfilimines is developed. The reaction proceeds smoothly under transition-metal-free and air conditions, giving rapid access to sulfilimines in good to excellent yields via selective S–Cbondformation. This protocol is scalable and exhibits a broad substrate scope, good functional group tolerance, and
Synthesis of Sulfilimines via Aryne and Cyclohexyne Intermediates
作者:Xianda Wu、Minghong Chen、Fu-Sheng He、Jie Wu
DOI:10.1021/acs.orglett.3c01918
日期:2023.7.14
metal-free approach for the synthesis of sulfilimines from sulfenamides with aryne and cyclohexyne precursors has been developed. The reaction proceeds through unusual S–C bond formation, which offers a novel and practical entry to access a wide range of sulfilimines in moderate to good yields with excellent chemoselectivity. Moreover, this protocol is amenable to gram-scale synthesis and is applicable to
Selective S-Arylation of Sulfenamides with Arynes: Access to Sulfilimines
作者:Yifeng Guo、Zhe Zhuang、Xiaoying Feng、Quanyu Ma、Ningning Li、Chaochao Jin、Hiroto Yoshida、Jiajing Tan
DOI:10.1021/acs.orglett.3c02785
日期:2023.10.6
Sulfilimines, the aza analogues of sulfoxides, are of increasing interest in medicinal and agrochemical research programs. However, the development of efficient routes for their synthesis has remained relatively unexplored. In this study, we report a transition metal-free, selective S-arylation reaction between sulfenamides and arynes, enabling the facile preparation of structurally diverse sulfilimines
Constructing <i>N</i>-Acyl/<i>N</i>-Sulfonyl Aza-Sulfur Derivatives from Amides/Sulfonamides and Thiophthalimides via Oxidant Regulation
作者:Yazhou Li、Yongkun Wang、Feifei Fang、Yu Zhang、Chunpu Li、Tao Yu、Qiangqiang Chen、Jiang Wang、Hong Liu
DOI:10.1021/acs.orglett.3c02166
日期:2023.8.18
Here, we have constructed five distinct types of N-acyl or N-sulfonyl aza-sulfur scaffolds using readily available (sulfon)amides and thiophthalimides with precise regulation of oxidants. Our novel methods feature one-pot mild reaction conditions and simple operation, thereby making them highly convenient for the late-stage diversification of various amide drugs, bioactive molecules, and peptides.