The synthesis of novel energetic azido compounds has been reported in previous papers of this series.'In the current work, it was of interest to prepare diazido and triazido derivatives of pentaerythritol. The initial approach for the synthesis of these compounds was based on the conversion of pentaerythritol to the dichloro (1) and trichloro (2) derivatives, 2 followed by subsequent reaction with sodium azide to give pentaerythritol diazide (3) and ...