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Chinese Journal of Chemistry 2011年第8期29卷 1624-1628页

作者： Ranjbar-Karimi, Reza Hashemi-Uderji, Somayeh Bazmandegan-Shamili, Alireza Department of Chemistry Faculty of Science Vali-E-Asr University Rafsanjan Islamic Republic of lran PO BOX 77176 lran

Magnesium oxide nanopartticels in average size between 35--120 nm were prepared by sonochemistry method. Synthesis of polyhydroquinoline derivatives using MgO nanoparticles from the reaction of dimedone, benzaldehyde ethyl acetoacetate and ammonium acetate under solvent-free conditions is reported. Easy handling, reusability, thermal stability and non-toxicity of the catalyst make the present protocol as an eco-friendly and economically acceptable method for synthesis of these heterocycles.

关键词： multicomponent reaction cyclization nanoparticle magnesium oxide polyhydroquinoline dihydropyridines aldehyde

One-step,synthesis of Hantzsch esters and polyhydroquinoline derivatives using new organocatalyst

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Chinese Chemical Letters 2010年第5期21卷 563-567页

作者： Seyed Meysam Baghbanian Samad Khaksar Seyed Mohammad Vahdat Maryam Farhang Mahmood Tajbakhsh Chemistry Department Islamic Azad UniversityRasht BranchPole-taleshanPO Box 41325-3516RashtIran Chemistry Department Islamic Azad UniversityAyatollah Amoli BranchPO Box 678AmolIran Department of Chemistry Mazandaran UniversityBabolsar 47415Iran

Herein we report an efficient organocatalyst for the multicomponent Hantzsch reaction under mild *** product easily isolated by simple filtration and catalyst can be recovered.

关键词： Organocatalyst Four-component coupling reactions polyhydroquinoline

Microwave assisted synthesis of novel Hantzsch 1,4-dihydropyridines,acridine-1,8-diones and polyhydroquinolines bearing the tetrazolo[1,5-α]quinoline moiety and their antimicrobial activity assess

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Chinese Chemical Letters 2011年第12期22卷 1407-1410页

作者： Niraj K.Ladani Divyesh C.Mungra Manish P.Patel Ranjan G.Patel Department of Chemistry Sardar Patel UniversityVallabh Vidyanagar 388120GujaratIndia

Microwave assisted efficient Hantzsch reaction via four-component coupling reactions of tetrazolo[1,5-α]quinoline-4-carbal-dehyde, dimedone/cyclohexane-1,3-dione,ethyl/methyl acetoacetate and ammonium acetate was described as the preparation of tetrazolo[1,5-α]quinoline based 1,4-dihydropyridines,acridine-1,8-diones and *** process presented here is simple,rapid,environmentally welcoming and high *** the derivatives were subjected to an in vitro antimicrobial screening against a representative panel of bacteria and fungi and results worth further investigations.

关键词： Microwave assisted Tetrazolo[1 5-α]quinoline 1 4-Dihydropyridine Acridine-1 8-dione polyhydroquinoline Antimicrobial activity

The SBA-15/SO_3H nanoreactor as a highly efficient and reusable catalyst for diketene-based,four-component synthesis of polyhydroquinolines and dihydropyridines under neat conditions

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Chinese Chemical Letters 2013年第5期24卷 401-403页

作者： Sadegh Rostamnia Fatemeh Pourhassan Organic and Nano Group(ONG) Department of ChemistryFaculty of ScienceUniversity of Maragheh

An efficient diketene ring-opening synthesis of polyhydroquinoline derivatives using SBA-15 sulfonic acid modified mesoporous substrates a green and reusable catalyst in a single-pot four-component coupling reaction of diketene,alcohol,enamine,and aldehydes is *** derivatives based on neat adduct of diketene,alcohols and aldehydes using SBA-15/SO_3H nanoreactor as catalyst via a four-component reactions are also *** advantages of the present method include the use of a small amount catalyst,simple procedure with an easy filterable work-up,waste-free,green and direct synthetic method with an excellent yield of products with efficient use of catalyst and a short reaction time.

关键词： SBA-15/SO3H Nanoreactor Diketene polyhydroquinoline

二氧化锡纳米粒子催化四组分Hantzsch缩合合成多氢喹啉衍生物(英文)

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催化学报 2013年第4期34卷 758-763页

作者： Seyed Mohammad VAHDAT Fereshteh CHEKIN Mehdi HATAMI Maryam KHAVARPOUR Saeed BAGHERY Ziba ROSHAN‐KOUHI Department of Chemistry Science and Research Ayatollah Amoli Branch Islamic Azad University Marine Science Research Institute Khoramshar University of Marine Science and Technology Chemical Engineering Department Islamic Azad University Ayatollah Amoli Branch Department of Chemistry College of Science Bu‐Ali Sina University Young Researchers Club Science and Research Ayatollah Amoli Branch Islamic Azad University

Tin dioxide (SnO2 ) nanoparticles efficiently catalyzed unsymmetrical four-component Hantzsch condensations of various aldehydes, dimedone, ethyl acetoacetate, and ammonium acetate to form polyhydroquinoline derivatives in excellent yields. This novel method offers several advantages over the traditional method of synthesizing these compounds, including safety, mild conditions, short reaction times, high yields, and an easy workup.

关键词： Nano tin dioxide catalyst Hantzsch condensation polyhydroquinoline 1 4‐Dihydropyridine

二氧化钛纳米粒子催化合成Hantzsch酯和多氢喹啉衍生物(英文)

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催化学报 2012年第9期33卷 1517-1522页

作者： Mahmood TAJBAKHSH Ehsan ALAEE Heshmatollah ALINEZHAD Mohammad KHANIAN Fatemeh JAHANI Samad KHAKSAR Parizad REZAEE Mahgol TAJBAKHSH Department of Organic Chemistry Faculty of ChemistryUniversity of Mazandaran Gorgan Medical University Chemistry Department Islamic Azad University

1,4-Dihydropyridine and polyhydroquinoline derivatives have been prepared efficiently in a one-pot synthesis via Hantzsch condensation using nanosized titanium dioxide as a heterogeneous *** present methodology offers several advantages such as excellent yields,short reaction times (30-120 min),environmentally benign,and mild reaction *** catalyst can be readily separated from the reaction products and recovered in excellent purity for direct reuse.

关键词： titanium dioxide nanoparticles Hantzsch reaction 1,4-dihydropyridine polyhydroquinoline