Chemistry of inorganic compounds – Oxygen or compound thereof – Peroxide
Patent
1976-04-30
1976-12-21
Vertiz, Oscar R.
Chemistry of inorganic compounds
Oxygen or compound thereof
Peroxide
C01B 1502
Patent
active
039989372
ABSTRACT:
1-Alkyl and 1,3-dialkyl 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 dimer, catalytically hydrogenating the adduct, then oxidizing the resulting hexahydro compound to the desired tetrahydroanthraquinone. Alternatively, the condensation product may be oxidized 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 H.sub.2 O.sub.2 and thus enhance H.sub.2 O.sub.2 production.
REFERENCES:
patent: 2657980 (1953-11-01), Sprauer
patent: 2867507 (1959-01-01), Gleason et al.
patent: 3307909 (1967-03-01), Reilly
Beilstein, Handbuch der Organische Chemie, vol. 7(II), 1948, pp. 666-669.
E. I. Du Pont de Nemours and Company
Langel Wayne A.
Vertiz Oscar R.
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