Revisiting the thermal decomposition of five ortho-substituted phenyl azides by calorimetric techniques

被引:0
作者
Paolo Cardillo
Lucia Gigante
Angelo Lunghi
Paolo Zanirato
机构
[1] Stazione Sperimentale per i Combustibili SSC,
[2] Dip.to di Chimica Organica ‘A. Mangini’,undefined
来源
Journal of Thermal Analysis and Calorimetry | 2010年 / 100卷
关键词
DSC; TGA-FTIR; C80 techniques; Heat flux calorimetry; Kinetic and thermodynamic parameters; MS (EI) spectroscopy; Pericyclic reactions and mechanism; Phenyl azides; Thermal decomposition ion in ‘solution phase’ and ‘solid phase’;
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学科分类号
摘要
The thermal decomposition (TD) of 2-azidophenylmethanol (1), 2-azidobenzenecarbaldehyde (2), 1-(2-azidophenyl)-1-ethanone (3), (2-azidophenyl)(phenyl)methanone (4) and 1-azido-2-nitrobenzene (5) was analysed by DSC, TG and C80 calorimetric techniques under both oxidative and non-oxidative conditions. The TD of these azides in solution is well known to give the corresponding benzoxazoles, generally in good yields, with the exception of azide 1. When both the outcomes from the solid phase and in ‘solution phase’ TD reactions combined with the results from EI-MS experiments were considered, sufficient information was available to estimate the azides intrinsic molecular reactivity (MIR).
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页码:191 / 198
页数:7
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