申请人:E. I. Du Pont de Nemours and Company
公开号:US03962288A1
公开(公告)日:1976-06-08
1-Alkyl and 1,3-dialkyl substituted-1,2,3,4-tetrahydroanthraquinone 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.
提供了1-烷基和1,3-二烷基取代的1,2,3,4-四氢蒽醌,这些化合物也可能在6-和/或7-位置被烷基取代。通过将萘醌与烷基取代的丁二烯二聚物缩合,催化氢化得到的加合物,然后将所得的六氢化合物氧化为所需的四氢蒽醌来提供这些化合物。或者,缩合产物可以与铜化合物或空气加弱碱氧化,然后将该化合物催化氢化,再氧化为相应的四氢蒽醌。这一发明的化合物在常用于制造H.sub.2 O.sub.2的循环过程中的溶剂中表现出优越的溶解性,从而增强了H.sub.2 O.sub.2的生产。