Benzamide → Benzamide, N-chloro-

HRID 2049521

Reaktionsgleichung

Reaktionsgleichung von HRID 2049521
[Cl:1]Cl.[C:3]([NH2:11])(=[O:10])[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1>O>[Cl:1][NH:11][C:3](=[O:10])[C:4]1[CH:9]=[CH:8][CH:7]=[CH:6][CH:5]=1

Komponenten

4

Edukt 2

HCID 2331BenzamideHCID 24526Chlorine3×

Produkt 1

HCID 12256294Benzamide, N-chloro-Ausbeute 98,9 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
20 °C

Versuchsvorschrift

A stream of gaseous chlorine in introduced at a speed of about 33 g/h into a suspension of 111 g of 99.5% pure benzamide (0.91 mol) in 700 ml of water maintained at a temperature of 15°-20° C. After 2 h and 15 min 75 g of chlorine (1.05 mol), controlled by weighing, have been absorbed. The mass is stirred for another 15 min at a temperature of 20° C., then the chlorinated product obtained is filtered off and is washed with water until the hydrochloric acid has disappeared. 140 g of N-chlorobenzamide (yield 98.9%) containing 21.87% of active chlorine, corresponding to a titer of 96%, are obtained.

Aufarbeitung

  1. temperaturemaintained at a temperature of 15°-20° C
  2. customhave been absorbed
  3. customthe chlorinated product obtained
  4. filtrationis filtered off
  5. washis washed with water until the hydrochloric acid

Quellen und Nachweise

ORD-Eintrag
ord-0aed35ba4b3149f79ac22109fc473f36
Quelldatensatz
uspto-grants-1980_04
Patentnummer
US04198348

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