Trifluoroacetic acid → HCID 54248163, compound

Participants

Reaction Steps

The product of stage (b) above (5.0 g) was added to trifluoroacetic acid (25 ml) and the resulting solution was stirred at room temperature for 3 hours. The solution was evaporated and the residue was triturated with diisopropyl ether and cooled in a solid carbon dioxide-acetone bath. The solid was filtered and washed with diisopropyl ether to give 3.5 g of the desired product, mp 136°-139° C.

Provenance & Evidence