反应详情

When 3,5-dichloro-4-hydroxybenzaldehyde was substituted for 4-hydroxy-benzaldehyde in Example 50, Step A the similar procedure afforded the title compound in 94% yield, as pale oil. 1H-NMR (CDCl3) 1.1 (tr, 3H, J=7.41 Hz); 1.82-1.93 (m, 2H); 4.04 (tr, 2H, J=6.54 Hz); 7.8 (s 2H); 9.84 (s, 1H).