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7945346 
Journal Article 
Ionic hydrogenation of dihydroxynaphthalenes with cyclohexane in the presence of aluminum bromide 
Ostashevskaya, LA; Koltunov, KY; Repinskaya, IB 
2000 
1 
Russian Journal of Organic Chemistry
ISSN: 1070-4280
EISSN: 1608-3393 
36 
10 
1474-1477 
English 
WOS:000168062000009 
Reactions of 1,5-, 1,6-, 1,7-, 2,6-, and 2,7-dihydroxynaphthalenes with cyclohexane in the presence of excess aluminum bromide in methylene bromide quantitatively yield 5-, 6-, and 7-hydroxynaphthalen-1-ones and 6- and 7-hydroxynaphthalen-2-ones, respectively. Tricationic C-protonated complexes are presumed to be reactive intermediates in these processes.