Hexamethylenetetramine → Hexamethylenetetramine

HRID 1414206Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1414206
[CH2:1]1[N:6]2[CH2:7][N:8]3[CH2:10][N:4]([CH2:5]2)[CH2:3][N:2]1[CH2:9]3.[C:11]([OH:21])(=[O:20])[C@@H:12]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[OH:13]>C(C(C)=O)C>[CH2:1]1[N:6]2[CH2:7][N:8]3[CH2:10][N:4]([CH2:5]2)[CH2:3][N:2]1[CH2:9]3.[C:11]([O-:21])(=[O:20])[CH:12]([C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1)[OH:13]

Komponenten

5

Edukt 2

HCID 4101HexamethylenetetramineHCID 11914(-)-Mandelic acid

Produkt 2

HCID 4101HexamethylenetetramineHCID 3839223Mandelate ion

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6569Methyl Ethyl KetoneLösungsmittel2×

Versuchsvorschrift

To a boiling suspension of 140 ml. of methyl ethyl ketone containing 18.7 g. (0.133 mole) of methenamine is slowly added a hot solution of 20.3 g (0.133 mole) of d-mandelic acid in 50 ml. of methyl ethyl ketone with vigorously stirring. The heat source is removed. The reaction mixture is stirred to room temperature, and then cooled in an ice-water bath. White crystals are collected by filtration, washed with a small amount of methyl ethyl ketone, followed by anhydrous ether, and dried at 50° C. in vacuum for 3 hours to obtain methenamine dextro-mandelate. mp. 133-4° C [c]D21 + 62.0° (C = 3,H2O)

Aufarbeitung

  1. additionTo a boiling suspension of 140 ml
  2. customThe heat source is removed
  3. temperaturecooled in an ice-water bath
  4. filtrationWhite crystals are collected by filtration
  5. washwashed with a small amount of methyl ethyl ketone
  6. customdried at 50° C. in vacuum for 3 hours

Quellen und Nachweise

ORD-Eintrag
ord-58ad5bff429343c1b1cc9d1d5d2e3911
Quelldatensatz
uspto-grants-1977_01
Patentnummer
US04001231

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