Abstract
A reaction of 3-(α-chlorobenzyl)quinoxalin-2(1 H)-one with α-picoline gives 2-(3-phenyl-indolizin-2-yl)benzimidazole as a result of a ring-contracting rearrangement involving the fragment C(2)—C(3)—C(Cl)Ph of the quinoxaline system and the fragment N=CH—Me of the α-picoline system. Possible pathways of this reaction are discussed.
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Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 9, pp. 1924–1928, September, 2009.
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Mamedov, V.A., Saifina, D.F., Gubaidullin, A.T. et al. A novel rearrangement in the system 3-[aryl(chloro)methyl]quinoxalin-2(1H)-one— α-picoline as a simple and efficient route to indolizin-2-ylbenzimidazoles. Russ Chem Bull 58, 1986–1990 (2009). https://doi.org/10.1007/s11172-009-0271-4
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DOI: https://doi.org/10.1007/s11172-009-0271-4