Oxalic acid dihydrate → Escitalopram Oxalate

Participants

Reaction Conditions

Reaction Steps

100 g of the free base was dissolved in 250 mL of 2-propanol. 1 eq. of oxalic acid dihydrate was dissolved in 250 mL of warm 2-propanol and was added at 40° C. to the solution of escitalopram base. After stirring at 40° C. for 10 min the crystallization started. The mixture was then allowed to cool to room temperature and stirred for ca. 2 hours. The crystals were filtered off, rinsed on the filter with 2-propanol and dried to constant weight under vacuum at 60° C.

Provenance & Evidence