Photochemical and Thermal Behavior of 2-Benzoyl-3-ethoxycarbonyl-methylcyclohex-2-enone and Its Derivatives

Preparation and cyclization of 2-benzoyl-3-ethoxycarbonylmethylcyclohex-2-enone and its derivatives have been investigated. Photochemical ring-closure followed by oxidative dehydrogenation was observed in suitably fixed triene derivatives. The results suggest that the cyclization of the photoenols (...

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Veröffentlicht in:	Chemical & pharmaceutical bulletin 1981/11/25, Vol.29(11), pp.3232-3237
Hauptverfasser:	TAMURA, YASUMITSU, WADA, AKIMORI, HAYASHI, YOKO, INOUE, MINAKO, KITA, YASUYUKI
Format:	Artikel
Sprache:	eng
Schlagworte:	formation of 10-ethoxycarbonyl-9-hydroxy-3, 4-dihydroanthracen-1 (2H)-one
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Beschreibung
Zusammenfassung:	Preparation and cyclization of 2-benzoyl-3-ethoxycarbonylmethylcyclohex-2-enone and its derivatives have been investigated. Photochemical ring-closure followed by oxidative dehydrogenation was observed in suitably fixed triene derivatives. The results suggest that the cyclization of the photoenols (trienes) of 3-alkyl substituted 2-benzoylcyclohex-2-enones to anthracenone derivatives occurs photochemically.
ISSN:	0009-2363 1347-5223
DOI:	10.1248/cpb.29.3232