THE SYNTHESIS OF α-DL-TOCOPHEROL
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概要
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First, 5-bromo-3, 6-dinitropseudocumene was prepared follows: Coal tar cumene→pseudocumene-5-sulfonic acid→5-bromopseudocumene→5-bromo-3, 6-dinitropseudocumeme. The latter compound gave by hydrogenation in the presence of palladium charcoal 3, 6-diaminopseudocumene, which was then oxidized with ferric salt to pseudocumoquinone.
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