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Synthesis of N-（α-Alkoxyalkyl）benzotriazoles Catalyzed by acidic ionic liquid at Room Temperature

Chinese Journal of Chemistry 2007年第7期25卷 1041-1043页

作者：王红霞纪顺俊顾大公 Key Laboratory of Organic Synthesis of Jiangsu Province College of Chemistry and Chemical Engineering Suzhou University Suzhou Jiangsu 215123 China Jiangsu Provincial Key Laboratory of Fine Petrochemical Technology Changzhou Jiangsu 213000 China

N-（α-Alkoxyalkyl）benzotriazoles were synthesized via the condensation of benzotriazole with various aldehydes and alcohols catalyzed by acidic ionic liquid [hmim]HSO4 at room temperature. The yield was up to 99%. This novel method was effective when triethoxymethane was utilized instead of alcohols. Moreover, acidic ionic liquid could be reused easily with no significant degradation of its catalytic activity.

关键词： N-(α-alkoxyalkyl)benzotriazole aldehyde acidic ionic liquid

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MCM-41 Immobilized acidic Functional ionic liquid and Chro mium（Ⅲ） Complexes Catalyzed Conversion of Hexose into 5-Hydroxymethylfurfural

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Chinese Journal of Chemistry 2017年第11期35卷 1739-1748页

作者： Wenwen Yuan Yi Huang Chunyan Wu Xiang Liu Yongmei Xia Haijun Wang School of Chemical and Material Engineering Jiangnan University Wuxi Jiangsu 214122 China State Key Laboratory of Food Science & Technology Wuxi Jiangsu 214122 China

The development of novel methods to obtain biofuels and chemicals from biomass has been an immediate issue in both academic and industrial communities. In this work, a series of novel catalysts were prepared and character- ized by FT-IR, TGA, XRD, SEM, TEM, ICP-AES, NH3-TPD and BET, which were applied for the conversion of hexose to 5-hydroxymethylfurfural （HMF）. The Cr（Salten）-MCM-41-[（CH2）3SO3HVIm]HSO4 catalyst was the most active catalyst, and a glucose conversion of 99.8% with 50.2% HMF yield was obtained at 140 ℃ for 4 h in dimethyl sulfoxide （DMSO）. The effects of reaction temperature, reaction time, solvents and catalyst dosages were investigated in detail. MCM-41 immobilized acidic functional ionic liquid and chromium（III） Schiff base complex- es as heterogeneous catalysts can be easily recovered by simple filter treatment, exhibiting excellent stability and activity towards hexose conversion. Thus the heterogeneous catalysts were environment-friendly for transforming biomass carbohydrates into fine chemicals.

关键词： glucose chromium(III) schiffbase complex acidic ionic liquid MCM-41 5-hydroxymethylfurfural

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Effect of various functional groups on biodiesel synthesis from soybean oils by acidic ionic liquids

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Chinese Chemical Letters 2012年第10期23卷 1107-1110页

作者： Ming Ming Fan Jing Jie Zhou Qiu Ju Han Ping Bo Zhang The Key Laboratory of Food Colloids and Biotechnology Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China

Preparation of biodiesel from soybean oils catalyzed by five acidic ionic liquids with three cationic functional groups was investigated. The improvement of the catalytic activities was affected by various functional groups including pyridine group, N- methylimidazole group, triethylamine group. Among them [C4SO3Hpy]HSO4 with pyridine group showed better catalytic activity with the biodiesel yield of 94.5%, and still yielded more than 90% after six successive uses. The possible mechanism was also discussed by two reaction paths in detail.

关键词： Biodiesel acidic ionic liquid Soybean oils Transesterification

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An efficient method to synthesize HMX by nitrolysis of DPT with N_2O_5 and a novel ionic liquid

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Chinese Chemical Letters 2009年第4期20卷 379-382页

作者： Hui Zhen Zhi Jun Luo Guang An Feng Chun Xu Lv School of Chemical Engineering Nanjing University of Science and Technology Nanjing 210094 China

A novel polyethylene glycol （PEG）-200-based dicationic acidic ionic liquid （PEG200-DAIL） was used to synthesize HMX from DPT by nitrolysis with N2O5. It was found that either N2O5 or PEGzoo-DAIL could improve the yield. Furthermore, the combined use of PEG200-DAIL and N2O5 could increase the yield of HMX to 64% with the used quantity of HNO3 decreased dramatically.

关键词： DPT Nitrolysis N2O5 acidic ionic liquid

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