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One-pot synthesis of isoquinoline-5,8-dione derivatives from acylquinones and enamines

✍ Scribed by Kazuhiro Kobayashi; Atsushi Takanohashi; Shinya Watanabe; Osamu Morikawa; Hisatoshi Konishi

Publisher: Elsevier Science
Year: 2000
Tongue: French
Weight: 69 KB
Volume: 41
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(00)01313-7

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✦ Synopsis

A new and facile method for the preparation of isoquinolinequinone derivatives has been developed. Treatment of 2-acyl-1,4-naphthoquinones or 2-acyl-5,6-dimethyl-1,4-benzoquinones with enamines (or imines), followed by addition of aqueous NH 3 in MeOH afforded benz[g]isoquinoline-5,10-dione or isoquinoline-5,8-dione derivatives, respectively, in moderate to good yields.

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