Reactions of benzimidazole-2-carbaldehyde with enamines |
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| Authors: | L Yu Ukhin O V Shishkin V N Baumer O Ya Borbulevych |
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| Institution: | (1) Institute of Physical and Organic Chemistry, Rostov State University, 194/2 prosp. Stachki, 344090 Rostov-on-Don, Russian Federation;(2) Institute for Single Crystals, Ukrainian National Academy of Sciences, 60 prosp. Lenina, 310001 Kharkov, Ukraine;(3) A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 117813 Moscow, Russian Federation |
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| Abstract: | Benzimidazole-2-carbaldehyde reacts with 1-morpholinocyclohexene, 1-morpholinocyclopentene, and aminocrotonic ester upon heating
to form 4a,11-dimorpholino-1,2,3,4,11,11a-hexahydro-4aH-indolo1,2-a]benzimidazole, 2-(2-morpholino-4,5-dihydrofulvenyl)benzimidazole, and 4-(benzimidazol-2-yl)-3,5-diethoxycarbonyl-2,6-dimethyl-1,4-dihydropyridine,
respectively.
Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 3, pp. 566–571, March, 1999. |
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| Keywords: | benzimidazole-2-carbaldehyde enamines 1 3-dipolar cycloaddition 4a 11-dimorpholino-1 2 3 4 11 11a-hexahydro-4aH-indolo[1 2-a]benzimidazole 2-(2-morpholino-4 5-dihydrofulvenyl)benzimidazole 4-(benzimidazol-2-yl)-3 5-diethoxycarbonyl-2 6-dimethyl-1 4-dihydropyridine |
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