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Additional information
A. N. Nesmeyanov Institute for Elemento Organic Compounds, Academy of Sciences of the USSR. Translated from Zhurnal Strukturnoi Khimii, Vol. 31, No. 4, pp. 167–170, July–August, 1990.
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Yufit, D.S., Struchkov, Y.T., Kirpichenok, M.A. et al. Substitution of 2-alkylidene-7-diethylaminobenzopirane: Crystal and molecular structure of 4-methyl-7-diethylamino-2-(5,5-dimethylcyclohexa-1,3-dione-2-iliden)-2H-1-benzopirane. J Struct Chem 31, 680–683 (1990). https://doi.org/10.1007/BF00752507
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DOI: https://doi.org/10.1007/BF00752507