2-Aminothiazole → 2-(2-AMINO-1,3-THIAZOL-5-YL)-1,1,1,3,3,3-HEXAFLUOROPROPAN-2-OL

Participants

Reaction Conditions

Reaction Steps

Thiazol-2-amine (150 mmol, 15 g), 4 Å powdered molecular sieves (1 g) and hexafluoroacetone trihydrate (300 mmol, 65.9 g) were combined and heated to 100° C. for 16 hours. The reaction mixture was cooled, diluted with ethyl acetate (200 mL) and filtered through celite. The filtrate was concentrated under reduced pressure to give a brown liquid which crystallised on standing. The solid was collected by filtration, washed with heptane (100 mL) then diethyl ether (50 mL) and dried under vacuum to afford the title compound (12.9 g). MS (ESI) m/z 266.7 [M+H]+

Provenance & Evidence