2.5.4. Amphiphilic Dendron G2

Functionalized vinyl-terminated dendron (400 mg, 0.44 mmol), 2-(dimethylamino)ethanethiol hydrochloride (275 mg, 1.76 mmol) and dimethoxyphenylacetophenone (DMPA) (12 mg, 0.044 mmol) were dissolved in 5 mL of mixture THF:CH3OH (1:2). The reaction mixture was deoxygenated by bubbling argon and irradiated by UV for 2 h (365 nm, 120W). Then, another 12 mg (0.044 mmol) of DMPA was added, and the reaction mixture was irradiated for another 2 h. The reaction completion was monitored by 1H NMR. After the reaction was completed, the solvents were removed under vacuum and then the residue was dissolved in methanol. Afterward, it was precipitated in diethyl ether, and after the solvent was separated, the solid was dried under vacuum to afford the desired dendron as light-yellow solid (495 mg, 75%). For characterization, the dendron was deprotonated with K2CO3.

1H NMR (400 MHz, CDCl3) <sup>δ</sup> <sup>−</sup>0.10 (s, 3H, Hm), <sup>−</sup>0.01 (s, 6H, Hq), 0.46 (m, 2H, Hl), 0.52 (m, 4H, Hn), 0.59 (m, 4H, Hp), 0.85 (s, 6H, Ha), 1.25 (m, 42H, Hb, Hc, Hk, Ho), 1.49 (m, 6H, Hd, Hj), 2.23 (s, 24H, Hv), 2.32 (m, 2H, Hi), 2.40 (m, 4H, Hh), 2.47 (m, 8H, Hu), 2.53 (m, 8H, Hs), 2.61 (m, 8H, Ht), 3.31 (s, 4H,

Hg), 3.75 (s, 4H, He), 4.71 (s, 2H, Hf). 13C NMR (101 MHz, CDCl3) δ -5.3, -5.1, 14.1, 14.6, 18.3, 18.7, 22.1, 22.7, 27.0, 27.7, 29.0–30.1 (m), 31.9, 37.0, 40.6, 42.9, 45.4, 53.3, 59.3, 127.7, 128.5, 165.0, 166.2. MS: [M + H]<sup>+</sup> 1329.00 amu (calcd 1327.99 amu).
