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An improved method that can be easily scaled up has been developed for the preparation of benzyl- N -vinyl carbamate. In this method vinyl isocyanate formed by the Curtius rearrangement of acryloyl azide is codistilled with a solvent such as toluene into benzyl alcohol containing a catalyst and inhibitor. The product thus obtained can be purified by crystallization, avoiding purification by high-vacuum distillation or chromatography. Potential safety issues associated with the process are discussed.
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C. K. Govindan (2001) studied this question.
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