3,3-Bis(5-methylfur-2-yl)-2-oxoindoline
North-Ossetian State University, RUS-362040 Vladikavkaz, Russian Federation
Molecules 1997, 2(9), M26; https://doi.org/10.3390/M26
Submission received: 2 September 1997
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Published: 22 September 1997
(This article belongs to the Section Molbank Section of Molecules, 1997-2001)
To a boiling solution of isatine (3 g, 20 mmol) and sylvan (4 ml, 50 mmol) in 30 ml of dioxane one drop of 70% perchloric acid was added. The mixture was heated for 2 h and, after cooling, poured into 200 ml of H2O. After washing by decantation, the brown oil was dissolved in 50 ml of ethanol. The precipitated product was recrystallised from dioxane to give 1.2 g (20%) of pale-rosy crystals.
M.p. 215-216deg.C.
1H NMR (CDCl3): 8.85-8.7 (s, 1H, NH), 7.4-6.75 (m, 4H, HAr), 6.1-6.0 (d, 2H, 3-HFur), 5.9-5.8 (d, 2H, 4-HFur), 2.15 (s, 6H, CH3) ppm.
Anal. calc. for C18H15NO3 (293.33): C 73.71, H 5.15, N 4.78; found: C 73.3, H 5.2, N 4.7.
Supplementary materials
Supplementary File 1Supplementary File 2- Sample availability: 3 g.
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Gutnov, A.V. 3,3-Bis(5-methylfur-2-yl)-2-oxoindoline. Molecules 1997, 2, M26. https://doi.org/10.3390/M26
AMA Style
Gutnov AV. 3,3-Bis(5-methylfur-2-yl)-2-oxoindoline. Molecules. 1997; 2(9):M26. https://doi.org/10.3390/M26
Chicago/Turabian StyleGutnov, Andrey V. 1997. "3,3-Bis(5-methylfur-2-yl)-2-oxoindoline" Molecules 2, no. 9: M26. https://doi.org/10.3390/M26
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