Herstellung von Anthrachinonderivaten aus dem DIELS‐ALDER‐Addukt von 1,4‐Naphtochinon und 5,5‐Dimethoxy‐1,2,3,4‐tetrachlorcyclopentadien
- 1 January 1963
- journal article
- research article
- Published by Wiley in Helvetica Chimica Acta
- Vol. 46 (2) , 492-498
- https://doi.org/10.1002/hlca.19630460210
Abstract
The preparation of the DIELS‐ALDERadduct of 1,4‐naphthoquinone and 5,5‐dimethoxy‐l,2,3,4‐tetrachlorocyclopentadiene is described and it is further shown how this adduct may be transformed into 1,2,3,4‐tetrachloroanthraquinone (30%), 1,2,3,4‐tetrachloro‐9‐anthrone (75%) and 2,3,4‐trichloroanthraquinone‐l ‐carboxylic acid methylester (84%).Keywords
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