报道了三甲基甲硅烷基取代的苯衍生物的亲电子ipso-取代成亚硝基苯衍生物。通过改变反应时间,温度和NOBF 4的当量,对中度电子不足,电子富集和空间受阻的原料进行了反应条件的优化。而且,亚硝化反应的稳定中间体可以通过19 F NMR表征,该19 F NMR可以与亚硝基苯衍生物分配给NO +加成物。该配合物在水后处理中分解并释放出所需的亚硝基苯衍生物。
A Convenient Iron-Catalyzed Method for the Preparation of 1,2-Bis(trimethylsilyl)benzenes
作者:Hermann Wegner、Samuel Bader、Simon Kessler
DOI:10.1055/s-0030-1258144
日期:2010.8
A convenient iron-catalyzed method for the preparation of 1,2-bis(trimethylsilyl)benzenes is presented. Compared to the current procedures, low temperatures and toxic solvents are avoided, allowing large-scale preparation. Additionally, a variety of substituents are tolerated.
Catalytic <i>ipso</i>‐Nitration of Organosilanes Enabled by Electrophilic <i>N</i>‐Nitrosaccharin Reagent
作者:Ivan Mosiagin、Anthony J. Fernandes、Alena Budinská、Liana Hayriyan、Kai E. O. Ylijoki、Dmitry Katayev
DOI:10.1002/anie.202310851
日期:2023.10.9
Deploying N-nitrosaccharin reagents in combination with Lewis acid activation enables the facile, regio- and chemoselective nitration of (het)aryl silanes, allowing the introduction of nitro group under unprecedently mild conditions suitable for the late-stage nitration of complex and polyfunctionalized molecules. Theoretical and experimental mechanistic investigations formulate a plausible mechanism
Synthesis of Nitrosobenzene Derivatives via Nitrosodesilylation Reaction
作者:Corinna Kohlmeyer、Maike Klüppel、Gerhard Hilt
DOI:10.1021/acs.joc.8b00262
日期:2018.4.6
of trimethylsilyl-substituted benzene derivatives into nitrosobenzene derivatives is reported. The optimization of the reaction conditions was performed for moderately electron-deficient, electron-rich, and sterically hindered starting materials by varying reaction time, temperature, and equivalents of NOBF4. Also, a stable intermediate of the nitrosation reaction could be characterized by 19F NMR which
报道了三甲基甲硅烷基取代的苯衍生物的亲电子ipso-取代成亚硝基苯衍生物。通过改变反应时间,温度和NOBF 4的当量,对中度电子不足,电子富集和空间受阻的原料进行了反应条件的优化。而且,亚硝化反应的稳定中间体可以通过19 F NMR表征,该19 F NMR可以与亚硝基苯衍生物分配给NO +加成物。该配合物在水后处理中分解并释放出所需的亚硝基苯衍生物。