An interesting 1,4,2,5-dioxadiazine-furazan system: structural modification by incorporating versatile functionalities.

Herein, the 1,4,2,5-dioxadiazine ring is combined with two furazan rings. Interestingly, the structure of the 1,4,2,5-dioxadiazine-furazan system can be modified by incorporating versatile functionalities. The N-trinitroethylamino functionalization derivatives and energetic salts based on 3,6-bis(4-amino-1,2,5-oxadiazol-3-yl)-1,4,2,5-dioxadiazine are investigated.

A new PEG-1000-based dicationic ionic liquid exhibiting temperature-dependent phase behavior with toluene and its application in one-pot synthesis of benzopyrans.

A new recyclable temperature-dependant phase-separation system comprised of PEG-1000-based dicationic acidic ionic liquid and toluene was developed and used in one-pot three-component condensation to prepare benzopyrans in excellent yields (up to 93%).

[Combustion temperature measurement of pyrotechnic composition using remote sensing Fourier transform infrared spectrometry].

In this paper, combustion characterization of pyrotechnic composition is investigated using a remote sensing Fourier transform infrared spectrometry. The emission spectra have been recorded between 4,700 and 740 cm-1 with a spectral resolution of 4 cm-1. The combustion temperature can be determined remotely from spectral line intensity distribution of the fine structure of the emission fundamental band of gaseous products such as HF.