Facile Approach for C(sp3)–H Bond Thioetherification of Isochroman
作者:Chun Cai、Jie Feng、Guoping Lu、Meifang Lv
DOI:10.1055/s-0034-1380125
日期:——
An unprecedented C–S formation protocol via the direct oxidative C(sp3 )–H bond thioesterification of isochroman under metal-free conditions was developed. A series of isochroman derivatives could be afforded efficiently by the green, simple, and atom-economical method.
Deprotonated Salicylaldehyde as Visible Light Photocatalyst
作者:Yan-Jun Zhuang、Jian-Ping Qu、Yan-Biao Kang
DOI:10.1021/acs.joc.0c00102
日期:2020.3.20
by the deprotonated salicylaldehyde through an energy-transfer pathway. Consequently, the C-C cleaving alkylation reactions of N-hydroxyphthalimide esters proceed smoothly in the presence of as low as 1 mol % of salicylaldehyde under the visible-light irradiation, affording desired alkylation products with up to 99% yields. Application in visible-light induced aerobic oxidation of N-alkylpyridinium
Syntheses of Sulfides and Selenides through Direct Oxidative Functionalization of C(sp<sup>3</sup>)–H Bond
作者:Bingnan Du、Bo Jin、Peipei Sun
DOI:10.1021/ol5011449
日期:2014.6.6
functionalization of the C(sp3)–H bond of alkanes under metal-free conditions was developed. Using tBuOOtBu as the oxidant, the reaction of disulfides or diselenides with alkanes gave sulfides or selenides in moderate to good yields. The method was very simple and atom-economical.
通过在无金属条件下对烷烃的C(sp 3)-H键进行直接官能化,开发了一种C-S和C-Se键形成的新方案。使用t BuOO t Bu作为氧化剂,二硫化物或二硒化物与烷烃的反应以中等至良好的收率得到硫化物或硒化物。该方法非常简单且原子经济。
Metal-Free Preparation of Cycloalkyl Aryl Sulfides<i>via</i>Di-<i>tert</i>-butyl Peroxide-Promoted Oxidative C(<i>sp</i><sup>3</sup>)H Bond Thiolation of Cycloalkanes
作者:Jincan Zhao、Hong Fang、Jianlin Han、Yi Pan、Guigen Li
DOI:10.1002/adsc.201400032
日期:2014.8.11
A concise thiolation of C(sp3)-Hbond of cycloalkanes with diaryl disulfides in the presence of oxidant of di-tert-butylperoxide (DTBP) has been developed. This reaction without using any of metal catalyst, tolerates varieties of disulfides and cycloalkanes substrates, giving good to excellent chemical yields, which provides a useful approach to cycloalkyl aryl sulfides from unactivated cycloalkanes
The First Example of .ALPHA.-Thiomagnesiums Generated from Dithioacetal Monoxides with Grignard Reagent; Their Properties and Some Synthetic Applications.
作者:Tsuyoshi Satoh、Kiyoshi Akita
DOI:10.1248/cpb.51.181
日期:——
Dithioacetal monoxides were synthesized from aldehydes and cyclohexanone, and reaction of the dithioacetal monoxides with Grignard reagents was investigated. The dithioacetal monoxide synthesized from alkylaldehyde and 4-chlorobenzenethiol reacted with i-PrMgCl to afford the desired α-thiomagnesium in high yield. The generated α-thiomagnesium was found to be stable at room temperature and to be useful in organic synthesis. In contrast to this, the dithioacetal monoxides derived from benzaldehyde and cyclohexanone did not give satisfactory results.