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Microwave promoted rapid dehydration of aldoximes to nitriles using melamine-formaldehyde resin supported sulphuric acid in dry media

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Chinese Chemical Letters 2011年第7期22卷 815-818页

作者： ramin rezaei Marzeih Karami Department of Chemistry Islamic Azad UniversityFirouzabad BranchP.O.Box 74715-117FirouzabadIran

A simple and convenient procedure for the synthesis of nitriles by dehydration of aldoxime using supported sulphuric acid on melamine-formaldehyde resin （MFR） under solvent-free condition has been developed. A variety of aromatic and aliphatic aldoximes were converted to the corresponding nitriles. The resin was recovered and reused for subsequent reactions. ~ 2011 ramin rezaei. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关键词： Aldoximes Nitriles Melamine-formaldehyde resin Sulphuric acid Solvent-free

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Propane-1,2,3-triyl tris(hydrogen sulfate): A mild and efficient recyclable catalyst for the synthesis of biscoumarin derivatives in water and solvent-free conditions

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Chinese Chemical Letters 2014年第1期25卷 183-186页

作者： ramin rezaei Fatemeh Moezzi Mohammad Mahdi Doroodmand Department of Chemistry Firoozabad BranchIslamic Azad University Department of Chemistry College of Sciences& Nanotechnology Research CenterShiraz University

A simple, efficient, and ecofriendly procedure has been developed using propane-l,2,3-triyl tris（hydrogen sulfate） as a catalyst for the synthesis of biscoumarin derivatives in water and solvent-free conditions. The significant features of the present protocol are simplicity, environmentally benign, high yields, no chromatographic separation, and recyclability of the catalyst.

关键词： Biscoumarin Aldehyde4-Hydroxycoumarin Propane-1 2 3-triyl tris(hydrogen sulfate)Homogeneous catalyst

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Melamine-formaldehyde resin supported H^+:A mild and inexpensive reagent for synthesis of coumarins under mild conditions

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Chinese Chemical Letters 2011年第11期22卷 1313-1316页

作者： ramin rezaei Leila Dorosty Maryam Rajabzadeh Reza Khalifeh Department of Chemistry Firoozabad Branch Islamic Azad UniversityP.O.Box 74715-117 FiroozabadIran Department of Chemistry Faculty of Basic Sciences ShirazUniversity of TechnologyShiraz71555-313Iran

Melamine-formaldehyde resin supported H~＋ is used as an efficient catalyst in the Pechmann condensation reaction of phenols withβ-ketoesters,in solvent-free media leading to the formation of coumarin derivatives usi... 详细信息

关键词： Coumarins Phenols β-Ketoesters Melamine-formaldehyde resin Pechmann condensation Solvent-free

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Inter-regulatory role of microRNAs in interaction between viruses and stem cells

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World Journal of Stem Cells 2021年第8期13卷 985-1004页

作者： Afsoon Afshari ramin Yaghobi Ghazal rezaei Shiraz Nephro-Urology Research Center Shiraz University of Medical SciencesShiraz ***Iran Shiraz Transplant Research Center Shiraz University of Medical SciencesShiraz ***Iran

MicroRNAs(miRNAs)are well known for post-transcriptional regulatory ability over specific mRNA *** exhibit temporal or tissue-specific expression patterns and regulate the cell and tissue developmental *** also have determinative roles in production and differentiation of multiple lineages of stem cells and might have therapeutic *** are a part of some viruses’regulatory machinery,not a *** trace of miRNAs was detected in the genomes of viruses and regulation of cell reprograming and viral *** of inter-regulatory systems has been detected for miRNAs during viral infections in stem *** between viruses and stem cells may be helpful in therapeutic tactics,pathogenesis,controlling viral infections and defining stem cell developmental strategies that is programmed by miRNAs as a ***,in this review we intended to study the interregulatory role of miRNAs in the interaction between viruses and stem cells and tried to explain the advantages of miRNA regulatory potentials,which make a new landscape for future studies.

关键词： MicroRNAs Viruses Stem cells Regulatory

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