Amberlite IR-120H:一种高效且可回收的多相催化剂,用于合成吡咯并[1,2- a ]喹喔啉和5'H-螺[吲哚啉-3,4'-吡咯并[1,2- a ]喹喔啉] -2 -那些
摘要:
已开发了一种绿色环保且可回收的催化剂Amberlite IR-120H树脂,在无溶剂条件下合成吡咯并[1,2- a ]喹喔啉的简单,高效且环境友好的方法。该方法具有许多优点,例如温和的条件,不使用氧化剂,环境相容和廉价的催化剂。而且,催化剂可以在反应完成后回收,并且可以使用,因为即使在五个循环内树脂的催化性能也不会受到影响。
Amberlite IR-120H: an efficient and recyclable heterogeneous catalyst for the synthesis of pyrrolo[1,2-a]quinoxalines and 5′H-spiro[indoline-3,4′-pyrrolo[1,2-a]quinoxalin]-2-ones
A simple, highly efficient and environmentally benign method for the synthesis of pyrrolo[1,2-a]quinoxalines has been developed using a green and recyclable catalyst Amberlite IR-120H resin under solvent-free conditions. The method provides several advantages such as mild conditions, no use of oxidant, environmentally compatible and inexpensive catalyst. Moreover, the catalyst can be recovered after
已开发了一种绿色环保且可回收的催化剂Amberlite IR-120H树脂,在无溶剂条件下合成吡咯并[1,2- a ]喹喔啉的简单,高效且环境友好的方法。该方法具有许多优点,例如温和的条件,不使用氧化剂,环境相容和廉价的催化剂。而且,催化剂可以在反应完成后回收,并且可以使用,因为即使在五个循环内树脂的催化性能也不会受到影响。
Synthesis of spiro[indoline-3,4′-pyrrolo[1,2-a]quinoxalin]-2-one catalyzed by molecular iodine
作者:Abdolali Alizadeh、Javad Mokhtari
DOI:10.1016/j.tet.2013.03.102
日期:2013.7
Molecular iodine catalyzed preparation of spiro[indoline-3,4'-pyrrolo[1,2-a]quinoxalin]-2-one. This reaction between N-(2-aminophenyl)pyrrole and isatins proceeds in CH3CN at room temperature in good to excellent yields. (C) 2013 Elsevier Ltd. All rights reserved.
Discovery of pyrrolospirooxindole derivatives as novel cyclin dependent kinase 4 (CDK4) inhibitors by catalyst-free, green approach
Aiming to develop a new target for the anticancer treatment, a series of 5'H-spiro[indoline-3,4'-pyrrolo [1,2-a]quinoxalin]-2-ones has been synthesized by simple, highly efficient and environmentally friendly method in excellent yields under catalyst-free conditions using ethanol as a green solvent. A simple filtration of the reaction mixture and subsequent drying affords analytically pure products. The synthesized derivatives were evaluated for their antiproliferative activity against five different human cancer cell lines, among the congeners compound 3n showed significant cytotoxicity against the human prostate cancer (DU-145). Flow cytometric analysis revealed that this compound induces cell cycle arrest in the G0/G1 phase and Western blot analysis suggested that reduction in Cdk4 expression level leads to apoptotic cell death. This was further confirmed by mitochondrial membrane potential ((Delta Psi m), Annexin V-FITC assay and docking experiments. Furthermore, it was observed that there is an increase in expression levels of cyclin dependent kinase inhibitors like Cip1/p21 and Kip1/p27. (C) 2015 Elsevier Masson SAS. All rights reserved.