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11.12.1.1.2.3 Method 3: From α-Hydroxy Ketones and Carbamic Acid Derivatives

DOI: 10.1055/sos-SD-011-00557

Boyd, G. V.Science of Synthesis, (200211393.

In a variation of the previous method (Section 11.12.1.1.2.2), α-hydroxy ketones 42 react with urethane or, better, carbamyl chloride to yield oxazol-2(3H)-ones 12. The reaction proceeds in two stages (Scheme 19), and the intermediate esters 47 are used without purification.[‌49‌]

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