反応 #1106627

反応方程式

2-hydroxyacetophenone

4-methylthiazole-5-carboxaldehyde

NaOCH3

THF

→

chalcone

収率 5.2%

反応条件

実験手順

2.21 g (16.3 mmol) of 2-hydroxyacetophenone, 1.96 g of 4-methylthiazole-5-carboxaldehyde (7.86 mmol), and 10 ml of 25% NaOCH3 were reacted in 50 ml of dry THF to give 1.59 g (5.2%) of chalcone after purification. 1H NMR (300 MHz, CDCl3): δ 12.73 (s, 1H), 8.76 (s, 1H), 8.05 (d, d, J=0.9, 15.0 Hz, 1H), 7.82 (d, d, J=1.5, 8.1 Hz, 1H), 7.49 (d, d, d, J=1.5, 7.2, 8.4 Hz, 1H), 7.31 (d, J=15.0 Hz, 1H), 7.00 (d, d, J=0.9, 8.4 Hz, 1H), 6.95-6.93 (m, 1H), 2.62 (s, 3H).

出典