Chemische Berichte

A new synthesis of ortho??Quinones by transition??metal??mediated oxygenation of phenols with tert??butylhydroperoxide and the mimoun oxodiperoxo molybdenum …

K Krohn, H Rieger, K Khanbabaee

Index: Krohn, Karsten; Rieger, Hagen; Khanbabaee, Karamali Chemische Berichte, 1989 , vol. 122, p. 2323 - 2330

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Citation Number: 32

Abstract

Abstract A specific oxygenation of phenols to ortho-quinones can be effected by a combination of the transition metal complexes Ti (OiPr) 4, VO (acac) 2, Zr (acac) 4, Zr (OnPr) 4 and tert-butylhydroperoxide (TBHP) or [Mo (O 2) 2 O]· Py· HMPT. Naphthols, anthracenols, phenanthrols and donor substituted mononuclear phenols are readily converted into the corresponding 1, 2-quinones. Unhindered ortho-naphthoquinones can yield binaphthyls ...