Main > ORGANIC CHEMICALS > Aromatics > Imide > 4-Nitro-N-Methyl-Phthalimide. > Patent > Claims > Claim 1: Nitration N-(1-10C Alkyl) > Phthalimide Process: a) Form Soln. > of N-Alkyl Phthalimide in Solvent > > 95% Nitric Acid; b) Reaction at > Temp. = -20C to BP of Nitric Acid; > IMPROVEMENT; Add Promoter: > Acid Anhydride. Claim 5: > Inorganic Acid Anhydride Selected > Nitric Anhydride; > Phosphoric Anhydride & SO3. > Claim 6: Organic Acid Anhydride > Claim 8: Select: Acetic Anhydride & > Trifluoroacetic Anhydride. Claim 16

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Trifluoroacetic Anhydride. Claim 16's subsections
N-Methyl Phthalimide. Assignee

Trifluoroacetic Anhydride. Claim 16's products
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