p-Xylyl bromide → 1-(4-Methoxyphenyl)-4-(2,2,4,6,7-pentamethyl-3-(4-methylbenzyl)oxy-2,3-dihydro-1-benzofuran-5-yl)piperazine

Participants

Reaction Steps

Using α-bromo-p-xylene and 5-(4-(4-methoxyphenyl)piperazin-1-yl)-2,2,4,6,7-pentamethyl-2,3-dihydro-1-benzofuran-3-ol obtained in Reference Example 18, the title compound was synthesized in the same manner as in Example 74. Yield 68%. mp. 84–85° C. (diisopropyl ether-methanol). 1H-NMR (CDCl3) δ: 1.36 (3H, s), 1.59 (3H, s), 2.07 (3H, s), 2.24 (3H, s), 2.25 (3H, s), 2.33 (3H, s), 3.05–3.35 (8H, m), 3.78 (3H, s), 4.49 (2H, s), 4.66 (1H, s), 6.86 (2H, d, J=9.2 Hz), 6.97 (2H, d, J=9.2 Hz), 7.13 (2H, d, J=8.2 Hz), 7.23 (2H, d, J=8.2 Hz).

Provenance & Evidence