Facile one-pot tandem synthesis of perfluoroalkylated indolizines under metal-free mild conditions
作者:Dong He、Yuhong Xu、Jing Han、Hongmei Deng、Min Shao、Jie Chen、Hui Zhang、Weiguo Cao
DOI:10.1016/j.tet.2017.01.005
日期:2017.2
A direct metal-free method for the synthesis of perfluoroalkylated indolizines by means of DIPEA-promoted tandem CN/CC bond formation was developed. Various substituted pyridines and bromoacetyl derivatives with methyl perfluoroalk-2-ynoates proceeded smoothly in this mild transformation, and the desired products were obtained in good to excellent yields under air.
开发了一种直接无金属的方法,该方法通过DIPEA促进的串联C N / C C键的形成来合成全氟烷基化的吲哚嗪。在这种温和的转化过程中,各种被全氟烷基-2-丙酮酸甲酯取代的吡啶和溴代乙酰基衍生物可顺利进行,并在空气中以良好或优异的收率获得所需的产物。
Coupling of Azomethine Ylides with Nitrilium Derivatives of<i>closo</i>-Decaborate Clusters: A Synthetic and Theoretical Study
作者:Aleksey L. Mindich、Nadezhda A. Bokach、Maxim L. Kuznetsov、Matti Haukka、Andrey P. Zhdanov、Konstantin Yu. Zhizhin、Serguei A. Miltsov、Nikolay T. Kuznetsov、Vadim Yu. Kukushkin
DOI:10.1002/cplu.201200257
日期:2012.12
factors, and steric repulsion between the boron cluster and the azomethineylide molecule plays a crucial role. The activation of the nitrile group upon binding to the boron cluster is explained in terms of the electrostatic arguments. The mechanisms of the nucleophilic addition and the hypothetical cycloaddition between the azomethineylide and nitriles were investigated in detail.
Synthesis of 4-Methyl-6-N-(4-R-phenyl)-1-azabicyclo[3.2.1]octane-3-enes
作者:V. A. Shadrikova、A. A. Shumkova、V. A. Shiryaev、Yu. N. Klimochkin
DOI:10.1134/s1070428023080079
日期:2023.8
Abstract
1-Azabicyclo[3.2.1]oct-3-ene were synthesized by the intramolecular carbocationic cyclization of 1-[2-hydroxy-2-(4-R-phenyl)ethyl]-1,2,3,6-tetrahydropyridines in a trifluoromethanesulfonic acid medium