反应详情

When the product of Step B was substituted for 3-chloro-4-ethoxybenzaldehyde in Example 49, Step A the identical process afforded the title compound in 95% yield, as a colourless solid. 1H-NMR (CDCl3) 1.00 (tr, 3H, J=7.38 Hz); 1.73-1.87 (m, 2H); 3.98 (tr, 2H, J=6.47 Hz); 6.85 (d, 1H, J=8.65 Hz); 7.84 (dd, 1H, J=2.09, 8.68 Hz); 7.98 (d, 1H, J=2.07 Hz).