A method for preparation of 3-Nitrophthalic Anhydride

摘要

A METHOD FOR PREPARATION OF 3-NITROPHTHALIC ANHYDRIDE The present disclosure relates to a method for preparation of 3-nitrophthalic anhydride. The method of the present disclosure does not require the use of a 'controlled substance' like acetic anhydride and uses an anhydride selected from propionic anhydride, n-butyric anhydride, isobutyric anhydride and acetic formic anhydride, in less molar quantities than the methods of the prior art. Also, the method of the present disclosure is less laborious and relies on commercially available organic fluid media for purification. The method of present disclosure is useful in preparing 3-nitrophthalic anhydride commercially in an economic and safe way. -N A0 3-Nitrophthalic Anhydride