TEMPO-Mediated Aza-Diels–Alder Reaction: Synthesis of Tetrahydropyridazines Using Ketohydrazones and Olefins
作者:Xiu-Long Yang、Xie-Xue Peng、Fei Chen、Bing Han
DOI:10.1021/acs.orglett.6b00702
日期:2016.5.6
facile, and efficient method for the synthesis of tetrahydropyridazines by a one-pot tandem reaction of easily accessible ketohydrazones and olefins in the presence of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) has been successfully developed. The reaction involves the initial generation of azoalkenes from direct oxidative dehydrogenation of ketohydrazones using TEMPO as the commercially available
Copper catalyzed cyanomethylation reaction of 4-thiazolidinone
作者:Prakashsingh M. Chauhan、Mayur I. Morja、Manjoorahmed Asamdi、Kishor H. Chikhalia
DOI:10.1016/j.tetlet.2020.152601
日期:2020.12
An effective coppercatalyzedCrossDehydrogenativeCoupling (CDC) reaction of 4-thiazolidinones with acetonitrile has been developed. The described strategy undergoes radical pathway by employing copper, oxidant and easily available acetonitrile as a cyanomethyl source. Various cyanomethylated 4-thiazolidinone derivatives were obtained easily and conveniently in moderate to good yield by employing
Design and synthesis of novel quinazolinone-pyrazole derivatives as potential α-glucosidase inhibitors: Structure-activity relationship, molecular modeling and kinetic study
作者:Fateme Azimi、Homa Azizian、Mohammad Najafi、Farshid Hassanzadeh、Hojjat Sadeghi-aliabadi、Jahan B. Ghasemi、Mohammad Ali Faramarzi、Somayeh Mojtabavi、Bagher Larijani、Lotfollah Saghaei、Mohammad Mahdavi
DOI:10.1016/j.bioorg.2021.105127
日期:2021.9
structure–activity relationship suggested that the variation in the inhibitory activities of the compounds affected by different substitutions on phenyl rings of diphenyl pyrazole moiety. The enzyme kinetic studies of the most potent compound 9i revealed that it inhibited α-glucosidase in a competitive mode with a Ki of 56 μM. Molecular docking study was performed to predict the putative binding interaction. As expected
C–O Coupling of Hydrazones with Diacetyliminoxyl Radical Leading to Azo Oxime Ethers—Novel Antifungal Agents
作者:Alexander S. Budnikov、Igor B. Krylov、Mikhail I. Shevchenko、Oleg O. Segida、Andrey V. Lastovko、Anna L. Alekseenko、Alexey I. Ilovaisky、Gennady I. Nikishin、Alexander O. Terent’ev
DOI:10.3390/molecules28237863
日期:——
Selective oxidative C-O coupling of hydrazones with diacetyliminoxyl is demonstrated, in which diacetyliminoxyl plays a dual role. It is an oxidant (hydrogen atom acceptor) and an O-partner for the oxidative coupling. The reaction is completed within 15-30 min at room temperature, is compatible with a broad scope of hydrazones, provides high yields in most cases, and requires no additives, which makes