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Chinese Journal of Chemistry 2017年第10期35卷 1595-1600页

作者： Chuanlei Zhu Ruiqiang Guo Zhe Sheng Yanzhe Li Changhu Chu School of Pharmacy Shanghai Key Laboratory of New Drug Design East China University of Science and Technology Shanghai 200237 China

A facile synthesis of benzo[h]quinolines has been developed via improved Combes reaction. A combination of silica gel, p-toluenesulfonic acid and phosphorus pentoxide was utilized to promote the condensation of 1-naphthylamines with 1,3-diketones under solvent free conditions. In this case, silica gel was used as reaction media, p-toluenesulfonic acid and phosphorus pentoxide were acted as catalyst and dehydrating agent, respectively.

关键词： silica-TsOH-P2O5 benzo[h]quinoline catalysis synthesis solvent free

Zinc chloride catalyzed synthesis of 5-substituted 1H-tetrazoles under solvent free condition

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Chinese Chemical Letters 2009年第11期20卷 1311-1314页

作者： Shahnaz Rostamizadeh Hamid Ghaieni Reza Aryan Ali Amani Department of Chemistry Faculty of SciencesK.N.Toosi University of TechnologyP.O.Box:15875-4416TehranIran Faculty of Material and Chemical Engineering Malek Ashtar University of TechnologyTehranIran Department of Chemistry Faculty of SciencesK.N.Toosi University of Technology P.O.Box:15875-4416TehranIran

Zinc chloride is an efficient and safe catalyst in the [3 ＋ 2] cycloaddition reaction of organic nitriles with sodium azide in solventless condition. The corresponding 5-substituted ^1H tetrazoles were obtained under mild conditions. This method can overcome disadvantages such as： the use of toxic metals and expensive reagents, drastic reaction conditions, water sensitivity and the presence of dangerous hydrazoic acid.

关键词： 5-Substituted ^1H-tetrazoles Zinc chloride Sodium azide solvent free

Microwave-assisted chemoselective copper-catalyzed amination of o-chloro and o-bromobenzoic acids using aromatic amines under solvent free conditions

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Chinese Chemical Letters 2009年第7期20卷 784-788页

作者： Yaghoub Sarrafi Manijeh Mohadeszadeh Kamal Alimohammadi Faculty of Chemistry Mazandaran UniversityBabolsarIran

Copper-catalyzed synthesis of N-aryl anthranilic acid derivatives using effective amination of 2-chloro and 2-bromobenzoic acid under microwave irradiation is reported. Some of the advantages of this method are high chemoselectivity, short reaction times, ease of work up procedure and elimination of the need for acid protection. 2009 Published by Elsevier B.V. on behalf of Chinese Chemical Society.

关键词： Microwave-assisted Copper-catalyzed solvent free Amination N-Aryl anthranilic acid

Amide Hydrolysis Reaction Catalyzed by KF/Al2O3 under Microwave Irradiation and solvent free Conditions

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Chinese Journal of Chemistry 2011年第10期29卷 2209-2212页

作者：张袖丽罗凯陈巍王磊 Department of Chemistry Anhui Agricultural University Hefei Anhui 230036 China Department of Chemistry Huaibei Normal University Huaibei Anhui 235000 China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China

A microwave-enhanced hydrolysis of amides utilizing KF/Al2O3 in the absence of solvents has been developed. Amines are produced in excellent yields along with the corresponding carboxylic acids.

关键词： amide hydrolysis KF/Al2O3 microwave irradiation solvent free amine

Microwave-enhanced Mannich Condensation of Terminal Alkynes, Primary Amines with Paraformaldehyde on Cuprous Iodide Doped Alumina under solvent free Conditions

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Chinese Journal of Chemistry 2003年第6期21卷 710-713页

作者：王磊李品华 Department of Chemistry Huaibei Coal Teachers College Huaibei Anhui 235000 China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 China Department of Chemistry Huaibei Coal Teachers College Huaibei Anhui 235000 China

A microwave enhanced, solventless Mannich condensation of terminal alkynes, primary amines with paraformaldehyde on cuprous iodide doped alumina has been investigated. The structures of products depend on the ratio o... 详细信息

关键词： Mannich condensation terminal alkyne para^form^aldehyde primary amine cuprous iodide alumina solvent free microwave irradiation

One-pot Three-component Reaction for Efficient and Facile Synthesis of γ-Nitrocarbonyl Compounds Under solvent-free Conditions

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Chemical Research in Chinese Universities 2015年第2期31卷 208-211页

作者： LU Chengwei LIU Yanhang ZHOU Xiaoxia WANG Jiajing Shcool of Chemistry and Chemical Engineering Liaoning Normal University Dalian 116029 P. R. China

A simple and efficient protocol was established to synthesize γ-nitrocarbonyl compounds via three-component one-pot tandem condensation reaction of aldehydes, Meldrum＇s acid and nitroalkanes under solventfree conditions. The present method shows fascinating features such as using readily available starting materials, promoting the yields by inexpensive and mild organic base triethylamine, omiting the synthesis of Michael acceptor and avoiding the use of organic solvent. This strategy provides an easy alternative synthetic approach to the useful intermediate, γ-nitrocarbonyl compounds, with moderate to good yields.

关键词： γ-Nitrocarbonyl compound Multicomponent reaction One-pot reaction solvent free

The promoting role of minor amount of water in solvent-free hydrogenation of halogenated nitrobenzenes

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Chinese Chemical Letters 2014年第2期25卷 205-208页

作者： Jing-Hui Lyu Xiao-Bo He Chun-Shan Lu Lei Ma Qun-Feng Zhang Feng Feng Xiao-Nian Li Jian-Guo Wang Institute of Industrial Catalysis College of Chemical Engineering and Materials ScienceZhejiang University of Technology

This study shows that minor amount of water plays a very important role in solvent-free hydrogenation of halogenated nitrobenzenes. For dried sponge Pd, the reaction cannot occur in the absence of water. For Pd/C catalyst, minor amount of water reduces the induction time, increases the reaction rate and reaction TOFs. Water might enhance the diffusion, adsorption and dissociation of H2 on Pd catalysts.

关键词： Halogenated nitrobenzenes solvent free Water Hydrogenation

Practical reduction of imines by NaBH_4/alumina under solvent-free conditions:An efficient route to secondary amine

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Chinese Chemical Letters 2008年第10期19卷 1167-1170页

作者： Foad Kazemi Ali Reza Kiasat Ebrahim Sarvestani Institute for Advanced Studies in Basic Sciences(IASBS) Zanjan 45195Iran Chemistry Department College of ScienceShahid Chamran UniversityAhvaz 61357-4-3169Iran

Sodium borohydride supported on alumina reduces imines to the corresponding secondary amines in high to excellent isolated yields under solvent-free conditions. Noteworthy is that highly chemoselective reactions were ... 详细信息

关键词： Imine Secondary amine solvent free Reduction Sodium borohydride

1,3-Dibromo 5,5-dimethylhydantoin (DBH):A novel and efficient catalyst for the synthesis of 14-aryl-14H-dibenzo[a,j] xanthenes under solvent-free conditions

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Science China Chemistry 2011年第6期54卷 957-960页

作者： FOROUZANI Mehdi GHASEMNEJAD-BOSRA Hassan HABIBZADEH Setareh University of Payamenoor Sari Iran Islamic Azad University-Babol Branch Babol Iran Industrial Noshiravani University Babol Iran

An atom-efficient and environment-friendly approach for the synthesis of aryl-14H-dibenzo[a,j]xanthenes (3a–o) via the one-pot reaction of β-naphthol and aryl aldehydes (1) catalyzed by DBH has been developed. The present approach offers several advantages such as reduced reaction times, moderate temperature, higher yields, solvent free, eco-friendly reaction condition, easy purification and economic availability of the catalyst.

关键词： one-pot synthesis xanthenes DBH solvent free

Synthesis of Dihydropyrimidines under solvent free and Catalyst free Condition and Biological Evaluation of Derivatives as Inhibitors of Mycobacterium bovis BCG

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Synthesis of Dihydropyrimidines under Solvent free and Catal...