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Synthesis 2005(10): 1631-1634
DOI: 10.1055/s-2005-865327
DOI: 10.1055/s-2005-865327
PAPER
© Georg Thieme Verlag Stuttgart · New York
Direct Nitration of 3-Arylamino-2-chloro-1,4-naphthoquinones
Further Information
Received
15 December 2004
Publication Date:
19 April 2005 (online)
Publication History
Publication Date:
19 April 2005 (online)

Abstract
A convenient two-step synthesis of mononitro and dinitro derivatives of the title compounds is reported. The Michael type addition of aromatic amines to 2,3-dichloro-1,4-naphthoquinone, is followed by mixed acids nitration to yield nitro aromatic quinones hard to get or unattainable before.
Key words
quinones - Michael additions - aromatic amines - nitrations - nitroquinones
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References
Crystallographic data were deposited at Cambridge Crystallographic data Centre, 12 Union Road, Cambridge CB2 IEZ, UK and are available from there under the deposition number CCDC 255861.