2-alkyl-substituted-1,2,3,4-tetrahydroanthraquinones
Abstract
Abstract 2-ALKYL-SUBSTITUTED-1,2,3,4,- TETRAHYDROANTHRAQUINONES ARE PROVIDED WHICH MAY ALSO BE ALKYL SUBSTITUTED IN THE 6-AND/OR 7-POSITION. THESE COMPOUNDS ARE PROVIDED BY CONDENSING A NAPHTHOQUINONE WITH AN ALKYL-SUBSTITUTED BUTADIENE, CATALYTICALLY HYDROGENATING THE ADDUCT, THEN OXIDIZING THE RESULTING HEXAHYDRO COMPOUND TO THE DESIRED TETRAHYDROANTHRAQUINONE, ALTERNATIVELY, THE CONDENSATION PRODUCT MAY BE OXIDAIZED WITH A CUPRIC COMPOUND OR WITH AIR PLUS A WEAK BASE, AND THIS COMPOUND CATALYTICALLY HYDROGENATED AND THEN OXIDIZED TO THE CORRESPONDING TETRAHYDROANTHRAQUINONE. THE COMPOUNDS OF THIS INVENTION EXHIBIT SUPERIOR SOLUBILITY IN SOLVENTS COMMONLY USED IN THE CYCLIC PROCESS FOR MANUFACTURING H2O2 AND THUS ENHANCE H2O2 PRODUCTION.
Inventors
- 👤 L Vaughan
Bibliographic Details
Claims Analysis
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