An efficient green synthesis of 5 H -spiro (benzo (4,5) imidazo (1,2- c) quinazoline-6,3′-indolin)-2′-ones catalyzed by iodine in ionic liquids
Abstract: Benzene-1,2-diamine was treated with 2-nitrobenzaldehyde in EtOH, and the product was reduced with hydrazine hydrate in the presence of Fe (C) without separation to give 2-(1H-benzo[d]imidazol-2-yl) aniline (1). Reactions of compound 1 with isatins in the presence of iodine in an ionic liquid furnished 5H-spiro[benzo[4, 5]imidazo[1,2-c]quinazoline-6,3′-indolin]-2′-ones in high yields.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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An efficient green synthesis of 5 H -spiro (benzo (4,5) imidazo (1,2- c) quinazoline-6,3′-indolin)-2′-ones catalyzed by iodine in ionic liquids ; volume:23 ; number:5 ; year:2017 ; pages:385-388 ; extent:4
Heterocyclic communications ; 23, Heft 5 (2017), 385-388 (gesamt 4)
- Creator
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Zhang, Mei-Mei
Wang, Yue
Liu, Jian-Quan
Wang, Xiang-Shan
- DOI
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10.1515/hc-2017-0046
- URN
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urn:nbn:de:101:1-2501130617192.294212795358
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
- 15.08.2025, 7:34 AM CEST
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Associated
- Zhang, Mei-Mei
- Wang, Yue
- Liu, Jian-Quan
- Wang, Xiang-Shan
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