反应详情

Triphenylphosphine polymer bound (Fluka, cat #93094) (1.6 g/mol, 6.3 mmol) was added to an aqueous (378 μL, 21.0 mmol)/THF (10 mL) solution of 3-[4-(azidomethyl)phenyl]-3-(trifluoromethyl)-3H-diazirine (506 mg, 2.1 mmol). The mixture was shaken until the starting material was no longer evident by TLC analysis (18 h). The triphenylphosphine-based support was filtered, washed with CH2Cl2, and the filtrate was concentrated in vacuum to obtain 350 mg (80%) of a yellow oil corresponding to the free amine: 1H NMR (CDCl3) δ 1.35-1.50 (br s, NH2), 3.89 (s, CH2), 7.17 (d, J=8.2 Hz, 2 C6H4), 7.35 (d, J=8.2 Hz, 2 C6H4); 13C NMR (CDCl3): δ 28.4 (q, J=39.9 Hz, C diazirine), 45.9 (CH2NH2), 122.2 (q, J=273.2 Hz, CF3), 126.7 (C6H2), 127.5 (C6H2), 145.0 (C6H2) (one peak is overlapped with an other one).

1. customwas no longer evident by TLC analysis (18 h)
2. filtrationwas filtered
3. washwashed with CH2Cl2
4. concentrationthe filtrate was concentrated in vacuum