4-(Dimethyl-tert-butylsilyl)oxybutan-1-ol → 2-(2-(3-(4-(Tert-butyldimethylsilyloxy)butoxy)phenoxy)ethyl)isoindoline-1,3-dione

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Mitsunobu reaction of phenol 24 with 4-(tert-butyldimethylsilanyloxy)butan-1-ol gave 2-(2-(3-(4-(tert-butyldimethylsilyloxy)butoxy)phenoxy)ethyl)isoindoline-1,3-dione as yellow oil. Yield (1.3 g, 78%): 1H NMR (400 MHz, CDCl3) δ 7.84-7.87 (m, 2H), 7.70-7.74 (m, 2H), 7.10-7.14 (m, 1H), 6.42-6.49 (m, 3H), 4.20 (t, J=5.6 Hz, 2H), 4.10 (t, J=5.6 Hz, 2H), 3.92 (t, J=6.6 Hz, 2H), 3.66 (t, J=5.6 Hz, 2H), 1.78-1.86 (m, 2H), 1.61-1.69 (m, 2H), 0.89 (s, 9H), 0.06 (s, 6H).

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