Phthalic Anhydride → N-Methylphthalimide

HRID 1855930Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1855930
O([C:8]1[CH:9]=[C:10]2[C:15](=[O:16])[N:14]([CH3:17])[C:12](=[O:13])[C:11]2=[CH:18][CH:19]=1)C1C=CC=CC=1.C1(=O)OC(=O)C2=CC=CC=C12>>[CH3:17][N:14]1[C:12](=[O:13])[C:11]2=[CH:18][CH:19]=[CH:8][CH:9]=[C:10]2[C:15]1=[O:16]

Komponenten

3

Edukt 2

HCID 6811Phthalic AnhydrideHCID 8215562-methyl-5-phenoxyisoindole-1,3-dione

Produkt 1

HCID 11074N-MethylphthalimideAusbeute 46 %

Versuchsvorschrift

The above results show that an exchange occurred between 4-phenoxy-N-methylphthalimide and phthalic anhydride, resulting in a 46% yield of N-methylphthalimide and a 64% yield of 4-phenoxyphthalic anhydride or acid. This conversion of 4-phenoxy-N-methylphthalimide to 4-phenoxyphthalic anhydride was achieved in a direct manner without any requirement for converting the 4-phenoxy-N-methylphthalimide to the corresponding hydrazide or the base hydrolysis thereof, resulting in the production of metal salt requiring the neutralization and heating of the resulting phthalic acid.

Aufarbeitung

  1. customThe above results

Quellen und Nachweise

ORD-Eintrag
ord-796184338a7c4165a53017e35c02ff7c
Quelldatensatz
uspto-grants-1980_08
Patentnummer
US04217281

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