Hydrochloric Acid → HCID 72516187, compound

Participants

Reaction Steps

A solution of [[2-(2,2-dimethyl-5-oxo-[1,3]-dioxolan-4-ylidene)-acetyl]-(4-fluorobenzyl)-aminooxy]-acetic acid tert-butyl ester (0.10 g, 0.24 mmol) in tetrahydrofuran (3 ml) was treated at 0° C. with 0.48 ml (0.48 mmol) of 1 M aqueous lithium hydroxide. After 1 h, the reaction mixture was acidified with 1N hydrochloric acid and extracted with ethyl acetate. The organic phase was washed with brine, dried (magnesium sulphate) and evaporated in vacuo. Chromatograpy of the residual solid on Premisphere 5 μC-8 (gradient of acetonitrile in water) gave 0.037 g (41% yield) of the title material as a white solid: mp 73° C. (dec). 1HNMR 400 MHz (CDCl3) δ (ppm): 1.51 (9H, s t-Bu), 4.36 (2H, s, CH2), 4.95 (2H, s, CH2), 6.66 (1H, broad s, CH), 7.05 (2H, m, aromatics), 7.39 (2H, m, aromatics). HRMS (ES+) calculated for C17H21FNO7[M+H]+: 370.130206. Found: 370.129173.

Provenance & Evidence