数字农科院2.0

Inclusion Interaction of Pyrimorph with beta-Cyclodextrin

文献类型： 外文期刊

作者： Wang Jian;Liu Ji-Ping;Wang Ming-An;Qin Zhao-Hai;Yuan Hui-Zhu

作者机构：

关键词： Pyrimorph;beta-Cyclodextrin;Inclusion complex

期刊名称： CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE

ISSN： 0251-0790

年卷期： 2009 年 30 卷 4 期

页码：

收录情况： SCI

摘要： The inclusion complexation behavior of pyrimorph with beta-CD was investigated quantitatively by UV measurement. The results show that they can form 1: 1 inclusion complex and the formation constant reduce with elevation of the temperature, indicating that inclusion reaction is exothermic. Thermodynamic parameters of inclusion reaction(Delta H, Delta S, Delta G) were all negative, which suggested that interaction process between beta-CD and pyrimorph was spontaneous driven by enthalpy changes of complexation. Phase-solubility experiments demonstrated that the water-solubility of pyrimorph was greatly enhanced in the presence of beta-CD. The results were favored to develop water-based pesticide formulation. In addition, the bioassay testified that inclusion interaction had no obvious effect on fungicidal activity of Pyrimorph. The structure of the inclusion complex was characterized with IR and 2D ROESY spectrum. The results present that the benzyl rings of pyrimorph enter into the cavity of beta-CD through the narrow rim and the tertiary butyl is closely to the wider rim, but the other residues of the molecule are not included.

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