Woods Brian P, Hoye Thomas R
Department of Chemistry, University of Minnesota , 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States.
Org Lett. 2014 Dec 19;16(24):6370-3. doi: 10.1021/ol503162k. Epub 2014 Dec 3.
The differential scanning calorimetry (DSC) behavior of a number of alkyne-rich compounds is described. The DSC trace for each compound exhibits an exothermic event at a characteristic onset temperature. For the tri- and tetraynes whose [4 + 2] HDDA reactivity in solution has been determined, these onset temperatures show a strong correlation with the cyclization activation energy. The studies reported here exemplify how the data available through this operationally simple analytical technique can give valuable insights into the thermal behavior of small molecules.
描述了多种富含炔烃化合物的差示扫描量热法（DSC）行为。每种化合物的DSC曲线在特征起始温度处呈现放热事件。对于已确定其在溶液中[4 + 2] HDDA反应活性的三炔和四炔，这些起始温度与环化活化能显示出强烈的相关性。此处报道的研究例证了通过这种操作简单的分析技术获得的数据如何能够深入了解小分子的热行为。
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