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A New Metal‐Free Access to Vitamin K3 |
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| Authors: | Anne Bohle,Anett Schubert,Yu Sun,Werner R. Thiel |
| Abstract: | 2‐Methylnaphthalene is oxidized in about 80 % yield with 7–9/1 regioselectivity to 2‐methyl‐1,4‐naphthoquinone by hydrogen peroxide with a strong mineral acid as the catalyst. No (transition) metal catalyst is required for this transformation. |
| Keywords: | acid catalysis hydrogen peroxide menadione oxidation vitamin K3 |