Hydrochloric Acid → ReN-1869 hydrochloride

Participants

Reaction Steps

The above ester (4.4 g, 11 mmol) was dissolved in ethanol (40 ml) and 4N sodium hydroxide (8.3 ml) was added. The mixture was stirred vigorously at ambient temperature for 7 h. Dichloromethane (700 ml) was added followed by 2.5N hydrochloric acid until pH 1. The phases were separated, the organic phase dried (MgSO4) and the solvent was evaporated in vacuo. The residue was re-evaporated twice with acetone and then triturated with a mixture of acetone and diethyl ether. The solid was isolated by filtration and dried in air to give 2.2 g of the title compound as a solid.

Provenance & Evidence