反应详情

When the product of Step A was substituted for 3-chloro-4-ethoxybenzaldehyde in Example 49 Step A the identical process afforded the title compound in 89% yield. 1H-NMR CDCl3) 1.4 (tr, 3H, J=6.95 Hz); 3.83 (s, 3H); 4.07 (q, 2H, J=6.96, 13.9, Hz); 6.79 (d, 1H, J=8.4 Hz); 7.47 (s, 1H); 7.58 (d, 1H, J=8.33 Hz).