Oxalic Acid → HCID 71295426, compound

Participants

Reaction Conditions

Reaction Steps

A suspension of 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)-butoxy]-1H-quinolin-2-one (3 g) in dichloromethane (20 ml) and methanol (20 ml) was warmed to 60° C., dissolved, and oxalic acid (0.69 g) dissolved in methanol (5 ml) was added at room temperature. The precipitated crystals were collected by filtration, and dried to give 7-[4-(4-benzo[b]thiophen-4-yl-piperazin-1-yl)-butoxy]-1H-quinolin-2-one oxalate (3.3 g).

Provenance & Evidence