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Chinese Chemical Letters 2013年第3期24卷 195-198页

作者： abolfazl ziarati Javad Safaei-Ghomi Sahar Rohani Department of Organic Chemistry Faculty of ChemistryUniversity of KashanKashan 51167Islamic Republic of Iran

An efficient and multicomponent method has been developed for the synthesis of functionalized tricarboxamides at room temperature using CuI nanoparticles as catalyst. This method involved fivecomponent coupling reactions of Meldrum＇s acid, isocyanides with aromatic aldehydes and amines at room temperature. Atom economy, wide range of products, excellent yields in short time and mild reaction conditions are some of the important features of this protocol. Notably, this catalyst could be recycled and reused for several times without significantly decreasing the catalytic activity.

关键词： TricarboxamidesCopper iodide nanoparticlesMulticomponent reactionsReusable catalyst

SnCl_2/nano SiO_2: A green and reusable heterogeneous catalyst for the synthesis of polyfunctionalized 4H-pyrans

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Chinese Chemical Letters 2013年第10期24卷 921-925页

作者： Javad Safaei-Ghomi Raheleh Teymuri Hossein Shahbazi-Alavi abolfazl ziarati Department of Organic Chemistry Faculty of ChemistryUniversity of Kashan

A highly efficient and general method for the synthesis of polyfunctionalized 4H-pyrans is established through a one-pot multicomponent cyclocondensation of aromatic aldehydes with CH acids, malononitrile and ethyl acetoacetate using nano silica supported tin （II） chloride as a catalyst. In this method SnCl2/nano Si02 was used as green and reusable catalyst. Excellent yields, short reaction times, simple workup, and inexpensiveness and commercially availability of the catalyst are the advantages of this method.

关键词： Nano silica supported tin (11) chloride Polyfunctionalized 4H-pyrans Multicomponent reactions Heterogeneous catalyst

Sonication method synergism with rare earth based nanocatalyst:preparation of NiFe_(2–x)Eu_xO_4 nanostructures and its catalytic applications for the synthesis of benzimidazoles,benzoxazoles,and benzothiazoles under ultrasonic irradiation

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Journal of Rare Earths 2017年第4期35卷 374-381页

作者： abolfazl ziarati Ali Sobhani-Nasab Mehdi Rahimi-Nasrabadi Mohammad Reza Ganjali Alireza Badiei School of Chemistry College of Science University of TehranTehran ***lran Young Researchers and Elite Club Arak BranchIslamic Azad UniversityArak ***Iran Faculty of Pharmacy Baqiyatallah University of Medical SciencesTehran ***lran Department of Chemistry Imam Hossein UniversityTehran ***lran Center of Excellence in Electrochemistry University of TehranTehran *** lran

A simple and practical ultrasonically synthetic strategy for the preparation of rare-earth based catalyst, nanostructured NiFe2-xEuxO4 was developed. The structtre of NiFe2-xEuxO4 was characterized by various analyses such as X-ray diffraction （XRD）, scanning electron microscopy （SEM） and fourier transform infrared spectroscopy （FT-IR）. The catalytic performance of NiFe2-xEuxO4 was evaluated for the synthesis of benzimidazoles, benzoxazoles and benzothiazoles under ultrasonic irradiation. All reactions were completed in short times and all products were obtained in good to excellent yields in presence of the rare-earth based catalyst. Besides, NiFe2-xEuxO4 could be recovered for 6 times without noticeably decreasing the catalytic activity.

关键词： rare earths organic reactions nanocatalyst ultrasonic irradiation

A highly flexible green synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives with CuI nanoparticles as catalyst under solvent-free conditions

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Chinese Chemical Letters 2014年第3期25卷 401-405页

作者： Javad Safaei-Ghomi Hossein Shahbazi-Alavi abolfazl ziarati Raheleh Teymuri Mohammad Reza Saberi Department of Organic Chemistry Faculty of ChemistryUniversity of Kashan

CuI nanoparticles as an efficient catalyst have been used for the preparation of 1H-pyrazolo[l,2- b]phthalazine-5,10-diones by the four-component condensation reaction of phthalic anhydride, hydrazine monohydrate, aromatic aldehydes and malononitrile or ethyl cyanoacetate under solvent- free conditions in good to excellent yields, short reaction times and environmentally benign, milder reaction conditions.

关键词： NanoparticlesMulti-component reactionsSolvent-freePyrazolophthalazine