Benzene → Phthalimide

HRID 1973123Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1973123
[C:1]1(=O)[O:6][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12.C=C(CCCC#N)CCCC#[N:18].C1C=CC=CC=1>P(=O)(O)(O)O.O>[C:1]1(=[O:6])[NH:18][C:4](=[O:5])[C:3]2=[CH:7][CH:8]=[CH:9][CH:10]=[C:2]12

Komponenten

6

Edukt 3

HCID 241BenzeneHCID 6811Phthalic AnhydrideHCID 30165315-Methylenenonanedinitrile

Produkt 1

HCID 6809PhthalimideAusbeute 199,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 1004Phosphoric AcidKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
240 °C

Versuchsvorschrift

225 g (1.52 moles) of phthalic anhydride, 121.5 g (0.75 mole) of 5-methylene-1,9-nonanedinitrile, 300 cc of benzene, 40 g of water and 2 g of phosphoric acid were placed in a 1-liter autoclave. The autoclave was closed, then purged with dry nitrogen. Following purging, the reactor was heated to 240° C for a period of 4 hours. After cooling, the reaction mixture was filtered. The filter solid, after being washed in 300 cc of benzene, filtered and dried, yielded 220 g of phthalimide having a melting point of 234°-238° C. Yield 100 percent.

Aufarbeitung

  1. customThe autoclave was closed
  2. custompurged with dry nitrogen
  3. customFollowing purging
  4. temperatureAfter cooling
  5. filtrationthe reaction mixture was filtered
  6. washThe filter solid, after being washed in 300 cc of benzene
  7. filtrationfiltered
  8. customdried

Quellen und Nachweise

ORD-Eintrag
ord-235c45dc691d4055bfddb37114316e02
Quelldatensatz
uspto-grants-1976_12
Patentnummer
US03996239

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