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ISSUE 10

Year 2007, Month 10 (Section Full Articles, Page 2054)

Reactions of 3-nitro-2-trihalomethyl-2H-chromenes with indole, N-methylindole, and N-methylpyrrole. Stereoselective synthesis of 4-azolyl-3-nitro-2-trihalomethylchromanes

V. Yu. Korotaev, V. Ya. Sosnovskikh, and I. B. Kutyashev

Heating of 3-nitro-2-trifluoromethyl- and 3-nitro-2-trichloromethyl-2H-chromenes with indole, N-methylindole, and N-methylpyrrole under solvent-free conditions led with high stereoselectivity and in good yields to cis—trans-3-nitro-2-trifluoromethyl- or trans—cis-3-nitro2-trichloromethylchromanes substituted by the indol-3-yl (pyrrol-2-yl) fragment in position 4.

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