Cu-catalysis was employed to create numerous (E)-5-bromo-N-aryl oxindole nitrones with satisfactory to excellent coupling efficiencies. This process involved the reaction of N-unprotected 5-bromoisatin-3-oximes and aryl-boronic acid derivatives under mild reactive conditions. Remarkably, the reaction exhibited tolerance towards several aryl-boronic acids containing diverse functional sensitivity subgroups (73% to 97% yields and 2 to 6 h). Extensive […]
Cu-catalysis was employed to create numerous (E)-5-bromo-N-aryl oxindole nitrones with satisfactory to excellent coupling efficiencies. This process involved the reaction of N-unprotected 5-bromoisatin-3-oximes and aryl-boronic acid derivatives under mild reactive conditions. Remarkably, the reaction exhibited tolerance towards several aryl-boronic acids containing diverse functional sensitivity subgroups (73% to 97% yields and 2 to 6 h). Extensive […]
Sulfuric acid {[3-(3-silicapropyl)sulfanyl]propyl}ester (SASPSPE) is employed as a recyclable catalyst for the synthesis of α-amino nitriles. These syntheses were performed via a one-pot three-component condensation of aldehydes, amines, and trimethylsilyl cyanide under mild reaction conditions at room temperature. The catalyst could be recycled and reused several times without any loss of efficiency.
Silica-bonded n-propyltriethylene-tetramine (SBNPTT) was found as an efficient solid base for the synthesis of 2-amino-5-oxo-5,6,7,8-tetrahydro-4H-chromenes. Chromene derivatives were obtained via the three-component condensation reaction of aromatic aldehydes, malononitrile, and dimedone at 80 oC under solvent-free conditions. The heterogeneous solid base showed much the same efficiency when used in consecutive reaction runs.
1,4-Dihydropyridines (1,4-DHPs) are recognized as one of the most versatile pharmacophores present as central core in many pharmaceuticals. Low yield and harsh reaction conditions prompted the researchers for the development of new environmental- friendly methods for the synthesis of 1,4-DHPs. This review explored the development of various green chemistry approaches using new catalysts developed for […]
Maryam Sadat Ghasemzadeh was born in Ghaen/ Southern Khorasan, Iran. She received her B.Sc. in Pure Chemistry from Imam Khomeini International University and M.Sc. in Organic Chemistry from Birjand University under the supervision of Professor Sara Sobhani. She is currently studying her Ph.D. in Ferdowsi University of Mashhad under the supervision of Professor Batool Akhlaghinia. […]
This review papers aims to comprehensively address the various aspects of ionic liquids and supported ionic liquids, which constitute a significant branch within the expansive field of green catalyst. Specifically, it delves into the recent advancements made in this domain over the past three years for the synthesis of heterocyclic compounds. In the introduction section […]
It’s fascinating to see how much research has been done on ferrite nanoparticles over the past few years. These small magnetic particles have unique properties that allow them to be manipulated at a very small scale. This review article is focused on the preparation of ferrite magnetic nanoparticles and silica-coated ferrite nanoparticles using various functionalized […]
The oxidation process of benzylic halides especially benzylic bromide to corresponding carbonyl compounds such as aldehydes and ketones is a worthwhile and important organic reaction in industrial and laboratory synthetic organic chemistry. In the present study, an efficient and novel method to obtain carbonyl compounds using benzyl bromide with a catalytic amount of chromium complexes […]
