Diethyl Ether → HCID 14091463, compound

Participants

Reaction Steps

A mixture of the product of step (b) (1.6 g; 4.8426 mmole) and diethyl oxalate (5.7 g; 39.041 mmole; 5.3 ml) in dry dimethylformamide (60 ml) was added slowly to a stirring suspension of ether washed sodium hydride (0.29 g; 12.0808 mmole) in dry dimethylformamide (10 ml) under nitrogen. After the addition, the mixture was allowed to stir for 7 hours. The reaction mixture was poured onto ice and was then acidified with dilute hydrochloric acid. The pH of the mixture was adjusted to about 6 before being extracted into chloroform. This was washed with water, dried and evaporated to give a yellow solid. The solid was taken up in ethanolic hydrogen chloride (50 ml) and heated to reflux on the steambath for 3 hours. The solution was cooled, treated with water and then concentrated. The pH of the mixture was adjusted to about 7 and then extracted into chloroform. The extract was washed with water, dried and evaporated, to give a brown solid.

Provenance & Evidence