3,4-Diethoxybenzoic acid → 3-(4-Bromophenyl)-5-(3,4-diethoxyphenyl)-1,2,4-oxadiazole

Participants

Reaction Steps

When the product of Step A was substituted for N-hydroxy-1H-indole-4-carboximidamide and 3,4-diethoxybenzoic acid was substituted for 3,4-dipropoxybenzoic acid in Example 43, Step C the similar process afforded the title compound in 58% yield. 1H-NMR (CDCl3) 1.47-1.53 (m, 6H); 4.14-4.24 (m, 4H); 6.97 (d, 1H, J=8.48 Hz); 7.61-7.66 (m, 3H); 7.77 (dd, 1H, J=1.98, 8.42 Hz); 8.00 (d, 2H, J=8.55 Hz).

Provenance & Evidence