Photoinduced and Thermal Denitrogenation of Bulky Triazoline Crystals: Insights into Solid-to-Solid Transformation
作者:Denisse de Loera、Antoine Stopin、Miguel A. Garcia-Garibay
DOI:10.1021/ja401577p
日期:2013.5.1
photoinduced and thermal denitrogenation of crystalline triazolines with bulky substituents leads to the quantitative formation of aziridines in clean solid-to-solid reactions despite very large structural changes in the transition from reactant to product. Analysis of the reaction progress by powder X-ray diffraction, solid-state (13)C CPMAS NMR, solid-state FTIR spectroscopy, and thermal analysis has
尽管从反应物到产物的转变过程中发生了非常大的结构变化,但具有庞大取代基的结晶三唑啉的光诱导和热脱氮导致在清洁的固固反应中定量形成氮丙啶。通过粉末 X 射线衍射、固态 (13)C CPMAS NMR、固态 FTIR 光谱和热分析对反应进程的分析表明,固对固反应要么通过易非晶化的亚稳相进行,要么通过涉及重建相变的机制,最终形成产品的稳定相。虽然固体到固体转变的关键是反应发生在反应物和产物双组分体系的共晶温度以下,