Trifluoroacetic acid → HCID 53648487, compound

Participants

Reaction Steps

A stirred solution of (2R)-2-propyl-succinic acid 1-benzyl ester 4-tert-butyl ester (4.56 g, 14.88 mmol) in anhydrous DCM (20 ml) at 0° C. was treated with a solution of trifluoroacetic acid (10 ml) in anhydrous DCM (10 ml). The reaction mixture was allowed to warm to ambient temperature over 3 h before being concentrated under reduced pressure. The residue was dissolved in dry DCM, before concentrating again. This process was repeated several times in order to remove excess trifluoroacetic acid to leave the sub-title compound (3.70 g, 99%) as a gum: 1H NMR (400 MHz, CDCl3) δ 0.82-0.99 (3H, m), 1.21-1.76 (4H, m), 2.45-2.60 (1H, m), 2.76-3.00 (2H, m), 5.10-5.21 (2H, m), 7.28-7.43 (5H, m), 7.83-8.18 (1H, m).

Provenance & Evidence