Abstract
A series of previously unreported aldehydes has been prepared by the formylation reaction of dipyrrolo[1,2-a;2':,1'-c]pyrazines and their 5,6-dihydro analogs by DMF and phosphorus oxychloride.
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V. I. Terenin, E. A. Sumtsova, S. Z. Vatsadze, E. V. Kabanova, I. F. Leshcheva, A. P. Pleshkova, and N. V. Zyk, Khim. Geterotsikl. Soedin., 1086 (2003).
V. I. Terenin, E. L. Ruchkina, I. F. Leshcheva, A. P. Pleshkova, and Yu. G. Bundel', Khim. Geterotsikl. Soedin., 52 (1997).
R. Jones and G. Bean, The Chemistry of Pyrroles, Academic Press, London (1977). 1491
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Terenin, V.I., Sumtsova, E.A., Kovalkina, M.A. et al. Dipyrrolo[1,2-a;2':,1'-c]pyrazines. 7. Electrophilic Substitution of Dipyrrolo[1,2-a;2',1'-c]pyrazines and 5,6-Dihydrodipyrrolo[1,2-a;2',1'-c]pyrazines via Formylation of Dipyrrolo[1,2-a;2':,1'-c]pyrazines. Chemistry of Heterocyclic Compounds 39, 1487–1491 (2003). https://doi.org/10.1023/B:COHC.0000014413.07428.a1
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DOI: https://doi.org/10.1023/B:COHC.0000014413.07428.a1