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### Curtius Rearrangement Mechanism: The Curtius rearrangement is a chemical reaction that involves the loss of nitrogen from an acyl azide to form an isocyanate intermediate, which can then undergo further transformations. Here’s the mechanism step by step: 1. Formation of Acyloxy Azide: The reaction starts with an acyl group (R-C=O) reacting with sodium azide (NaN₃) to form an acyl azide. This ________ ____ ______ _______ _____ __________ __________ _____ ____.
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