Piperonal → 4-[[1-(1,3-Benzodioxol-5-ylmethyl)-4-piperidinyl]amino]-6-chloro-2H-1-benzopyran-2-one

Beteiligte Stoffe

Reaktionsschritte

According to Procedure A above, 6-chloro-4-(piperidin-4-ylamino)-chromen-2-one and piperonal (0.032 g, 0.216 mmol) were allowed to react to give the title compound (0.0123 g, 39%, mono-TFA salt) as an off-white solid. 1H NMR (400 MHz, MeOH) δ ppm 8.12 (br s, 1H), 7.61 (d, J=8, 1H), 7.33 (d, J=8, 1H), 7.00 (m, 2H), 6.93 (dd, J=4, 8, 1H), 6.03 (s, 2H), 5.44 (s, 1H), 4.26 (s, 2H), 3.79-3.90 (m, 1H), 3.62-3.56 (m, 2H), 3.11-3.22 (m, 2H), 2.29-2.40 (m, 2H), 1.85-1.99 (m, 2H); MS (ESI+Q1MS) m/z 413 [M]+

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