Method of preparing refined organic compound for use in photography with improved liquid-liquid extraction from organic reaction mixture

Abstract

There is disclosed a method of preparing a refined organic compound, comprising the steps of adding water to an organic reaction mixture and mixing them, and then subjecting the mixture to filtration processing using a filter, to separate an organic phase from an aqueous phase, and then isolating the intended organic compound from said organic phase. The method enables highly precise removal of a water-easily soluble compound from an organic reaction mixture, and it further enables obtaining the intended synthesized organic compound in high yield with a high quality.

Dependencies are inferred from the claim text.