4-Bis(2-pyridylmethyl)aminomethyl-2-(5-methoxy-2-methoxymethoxyphenyl)benzoxazole → 4-Bis(2-pyridylmethyl)aminomethyl-2-(4-methoxymethoxyphenyl)benzoxazole

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Reaction Steps

4-bis(2-pyridylmethyl)aminomethyl-2-(4-methoxymethoxyphenyl)benzoxazole (F21) was prepared in a similar manner for the preparation of 4-bis(2-pyridylmethyl)aminomethyl-2-(5-methoxy-2-methoxymethoxyphenyl)benzoxazole (F18) using 4-bromomethyl-2-(4-methoxymethoxyphenyl)benzoxazole (F15) (552 mg, 1.5 mmol) instead of 4-bromomethyl-2-(5-methoxy-2-methoxymethoxyphenyl)benzoxazole (F12) in 98% (704 mg); 1H-NMR (400 MHz, CDCl3) δ3.52 (s, 3H), 3.93 (s, 4H), 4.19 (s, 2H), 5.26 (s, 2H), 7.11-7.18 (m, 4H), 7.29 (t, 1H, J=8.0 Hz), 7.44 (d, 1H, J=8.0 Hz), 7.51 (d, 1H, J=8.0 Hz), 7.66 (d, 2H, J=7.6 Hz), 7.78 (d, 2H, J=7.6 Hz), 8.19 (d, 2H, J=9.2 Hz), 8.55 (d, 2H, J=5.0 Hz).

Provenance & Evidence