CC1C=CC(S(O[CH2:12][CH2:13][C:14]#[CH:15])(=O)=O)=CC=1.[NH:16]1[CH:20]=[CH:19][N:18]=[CH:17]1.C([O-])([O-])=O.[K+].[K+].C(Cl)Cl>CC(=O)CC.O>[CH2:12]([N:16]1[CH:20]=[CH:19][N:18]=[CH:17]1)[CH2:13][C:14]#[CH:15]A mixture of but-3-ynyl 4-methylbenzenesulfonate (1.04 g), imidazole (573 mg) and K2CO3 (3.88 g) in 2-butanone (10 mL) was heated to reflux overnight. Work-up (DCM, H2O), drying (Na2SO4) and concentration gave 1-(but-3-ynyl)-1H-imidazole (501 mg).
Wird geladen…