Huang Cheng-jun
2009
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Journal
Chinese Journal of Pharmaceuticals
Abstract
The resolving agent D-or L-dibenzoyl tartaric acid,was prepared by the acylation of D-or L-tartaric acid with excess of benzoyl chloride to give dibenzoyl tartaric anhydride,followed by hydrolysis with an overall yield of 82%.The residual benzoic acid in the product was controlled to below 0.1% by work-up with toluene.