Diborane phosgene

The addition of a gas to a reaction mixture (commonly the hydrogen halides, fluorine, chlorine, phosgene, boron trifluoride, carbon dioxide, ammonia, gaseous unsaturated hydrocarbons, ethylene oxide) requires the provision of safety precautions which may not be immediately apparent. Some of these gases may be generated in situ (e.g. diborane in hydroboration reactions), some may be commercially available in cylinders, and some may be generated by chemical or other means (e.g. carbon dioxide, ozone). An individual description of the convenient sources of these gases will be found under Section 4.2. 

In a remarkable and surprising (but undoubtedly correct) report, it was found that all attempts to bring about a reaction between diborane and phosgene met with failure [280a]. 

ARCTON (75-46-7) Violent reaction with alkaline earth and alkali metals. Reacts violently with aluminum oxide at elevated temperatures, producing hydrogen chloride and phosgene vapors. Incompatible with beryllium, decaborane, diborane, difluoromethylene dihypofluorite, fluorine, lithium, magnesium, potassium, potassium acetylene-1,2-dioxide, potassium acetylene-1,2-dioxide, potassium sodium alloy, sodium amide, titanium, uranium hydride, zinc. Attacks aluminum, magnesium, zinc, and their alloys. 

FLUORYL (75-46-7) Violent reaction with alkaline earth and alkali metals. Reacts violently with aluminum oxide at elevated temperatures, producing hydrogen chloride and phosgene vapors. Incompatible with beryllium, decaborane, diborane, difluoromethylene... 

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