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A facile synthesis of 5,7-dihydro-5-oxopyrido[3′,2′:5,6]pyrimido[1,2-a]benzimidazoles. A new heterocyclic ring system

✍ Scribed by Paola Caroti; Carlo Ceccotti; Antonio Da Settimo; Fabio Palla; Giampaolo Primofiore


Book ID
112128436
Publisher
Journal of Heterocyclic Chemistry
Year
1986
Tongue
English
Weight
259 KB
Volume
23
Category
Article
ISSN
0022-152X

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✍ Antonio Da Settimo; Giampaolo Primofiore; Federico Da Settimo; Gianluca Pardi; F 📂 Article 📅 2002 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 64 KB

## Abstract The synthetic potential of the title compounds benzimidazo[1,2‐__a__]quinazoline‐5(7__H__)‐one **2a** and 5,7‐dihydro‐5‐oxopyrido[3′,2′:5,6]pyrimido[1,2‐__a__]benzimidazole **2b** for the construction of novel polyhetero‐cyclic frameworks is reported. Compounds **2a,b**, by conversion i