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Indoles, VII 4,9-Dihydropyrano[3,4-b]indol-1(3H)-ones from meta-substituted α-Phenylhydrazono-δ-lactones - Synthesis and Regioselectivity

✍ Scribed by Jochen Lehmann; Ursula Pohl


Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
233 KB
Volume
321
Category
Article
ISSN
0365-6233

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✍ Adel A. El-Gendy; Jochen Lehmann 📂 Article 📅 1987 🏛 John Wiley and Sons 🌐 English ⚖ 326 KB 👁 1 views

Eingegangen am 31. Oktober 1986 Pyrano[ 3,4-blindolones 3a-d are available from a-ethoxyalyllactones la, c and disubstituted hydrazines 2a, b without isolation of intermediates. In a two-phase system, however, the intermediate hydrazones 4a, c can be isolated. Conversion of 3a-d into P-carbolines wa