作者:S. I. Zav'yalov、O. F. Dorofeeva、E. E. Rumyantseva、A. G. Zavozin
DOI:10.1007/bf02226529
日期:1995.2
Dihydroresorcinol and dimedone are condensed with aromatic amines at room temperature under the action of CiSiMe3-DMFA system to give 3-anilino-2-cyclohexene derivatives in 70–90% yield.
Palladium-Catalyzed Coupling of Vinylogous Amides with Aryl Halides: Applications to the Synthesis of Heterocycles
作者:Scott D. Edmondson、Anthony Mastracchio、Emma R. Parmee
DOI:10.1021/ol000031z
日期:2000.4.1
of vinylogous amides with aryl bromides and chlorides. The scope of this reaction with respect to the aryl component is investigated. Additionally, a tandemreaction sequence in which the above coupling is followed by an intramolecular Heck reaction is presented. These reactions can be applied to high-yielding, one-potsyntheses of nitrogen-containing heterocycles.
Visible Light instead of Transition Metal: Electron Donor Acceptor Complex Enabled Cross‐Coupling of Aryl Halides with Active Methylene Compounds
作者:Alexey A. Volkov、Dmitry I. Bugaenko、Alexander V. Karchava
DOI:10.1002/adsc.202301192
日期:2024.2.19
An arylation of anions of activemethylene compounds with aryl halides provides an access to synthetically versatile α-arylated 1,3-diketones, β-keto esters, β-keto nitriles, β-cyano esters, etc. Previously, these C−C cross-coupling reactions have been accomplished only using transition metal-based catalysts. Herein, we demonstrate that these arylations can be successfully realized under catalyst-free
活性亚甲基化合物的阴离子与芳基卤化物的芳基化提供了合成通用的 α-芳基化 1,3-二酮、β-酮酯、β-酮腈、β-氰基酯等的途径。以前,这些 CC 交叉-偶联反应仅使用过渡金属基催化剂即可完成。在此,我们证明这些芳基化可以在无催化剂条件下采用电子供体-受体(EDA)复合物光活化策略成功实现。该方案进一步优化,用于通过分子内 C−C 偶联半一锅合成吲哚衍生物。
Grinding induced catalyst free, multicomponent synthesis of Indoloindole pyrimidine
A simple, efficient, environmentally friendly, and ethanol assisted mechanochemical approach for the synthesis of Indoloindole pyrimidine has been developed through a simple mortar and pestle under catalyst-free grinding method. The present protocol is green and associated with easy workup step, high yield of product, short reaction time, and bear an extensive range of functional groups. (C) 2020 Elsevier Ltd. All rights reserved.