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Synthese von 4,8‐Dimethoxy‐1,5‐naphthalindiol und dessen Oxidation zu 4,8‐Dimethoxy‐1,5‐naphthochinon
Author(s) -
Laatsch Hartmut
Publication year - 1990
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.1990199001210
Subject(s) - chemistry , methylation , ether , quinone , medicinal chemistry , organic chemistry , biochemistry , gene
Synthesis of 4,8‐Dimethoxy‐1,5‐naphthalenediol and Its Oxidation to 4,8‐Dimethoxy‐1,5‐naphthoquinone Formation of the new 1,5‐naphthoquinone 3 was achieved by methylation of 1,4,5,8‐naphthalenetetrol ( 1a ) and oxidation of the dimethyl ether 1c obtained thereof. In the presence of water, 3 yields the monoether 5a . Methylation of binaphthazarin ( 6a ) seems to proceed in a similar manner.