HCID 57095388, compound → HCID 21744666, compound

Participants

Reaction Steps

A mixture of 4,4'-[1,2-ethanediylbis(oxy)bis(alpha-oxobenzeneacetic acid) dimethyl ester (4:1) molar hydrate (0.385 g) in methanol and 0.5N sodium hydroxide (8 mL) was treated as in Example 19. Extraction with tetrahydrofuran provided solids where were crystallized from acetonitrile to give 0.315 g of colorless 4,4'-[1,2-ethanediylbis(oxy) bis(alpha-oxobenzene-acetic acid) acid as an 0.25 molar hydrate, mp 212°-213° C.

Provenance & Evidence