4-Bromothiazole → HCID 67371743, compound

Participants

Reaction Steps

10.0 g (100 mmol) (R)-2-methylpiperazine were fused at 100° C. 2.7 g (16.8 mmol) 4-bromothiazol was added in portions to this fusion over a period of 2 h. Stirring was subsequently performed for 18 h at 100° C. After cooling to RT, the residue was received in 10% aq. hydrochloric acid and washed with AE. Alkalic adjustment was subsequently performed with a 10% aq. NaOH sol. (pH>12) and extracted with DCM. The organic phase was dried over MgSO4, filtered and concentrated in a vacuum. CC (SiO2, DCM/MeOH 9:1) was performed with the residue, whereby 277 mg (1.5 mmol, 9%) (R)-4-(3-methylpiperazine-1-yl)thiazol was obtained.

Provenance & Evidence