Decomposition of Usnic Acid. V. Pyrolysis of Dihydrousnic Acid.(2). some Observations on Dihydrousnic Acid
1956 Volume 4 Issue 1 Pages 65-67
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1956 Volume 4 Issue 1 Pages 65-67
(-) and (+) Dihydrousnic acid were directly prepared from (+) and (-) usnic acid by catalytic hydrogenation using palladium black as a catalyst and tetrahydrofuran as a solvent. On heating in vacuo, (-) and (+) dihydrousnic acid were converted into isomeric (+) and (-) isodihydrousnic acid, respectively.
