11-Bromoundecyl methacrylate (0.32 g, 1.0 mmol), N,N-dimethylpropargylamine (2.0 ml, 18.6 mmol), and 4-methoxyphenol (trace) were dissolved in 8.0-ml THF under nitrogen atmosphere. After reaction at 60°C for 20 hours, the solvent was evaporated off, and the obtained crude product was washed with diethyl ether to remove the impurities. MA-11-CC was obtained as a white solid with a yield of 73%.

1H NMR (500 MHz, CDCl3): δ (ppm) 6.09 (s, 1H, CH2═C), 5.55 (s, 1H, CH2═C), 4.86 (s, 2H, N─CH2─CC), 4.14 (t, 2H, ─CH2─OOC), 3.65 (t, 2H, ─CH2─N), 3.51 (s, 6H, CH3─N), 2.85 (s, 1H, CCH), 1.94 (s, 3H, CH3─C═C), 1.76 (m, 2H, ─CH2─CH2─OOC), 1.67 (m, 2H, ─CH2─CH2─N), and 1.24 to 1.44 [m, 14H, ─(CH2)7─]. MALDI-TOF (positive ion): Calcd m/z for C20H36O2N1+: 322.27; found, 322.28.

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