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Regiospecific synthesis of 1,3-diazaazulenes

✍ Scribed by Renzo Cabrino; Bruno Ricciarelli; Francesco Pietra

Publisher: Elsevier Science
Year: 1974
Tongue: French
Weight: 200 KB
Volume: 15
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)91824-6

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✦ Synopsis

Recently it has become possible to functionalize the cycloheptatrienone nucleus specifically at either C(2) or C(7).' Briefly, cycloheptatrienones carrying a displaceable group at C(2) react with nucleophiles by competitive paths a and & (Scheme).' Path a is favoured by both mesomerically electron

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