Sodium Nitrite → N-propyl-N'(beta-D-glucosyl)-N-nitrosourea

HRID 2083776Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2083776
[C@@H:1]1([NH:12][C:13]([NH:15][CH2:16][CH2:17][CH3:18])=[O:14])[O:9][C@H:8]([CH2:10][OH:11])[C@@H:6]([OH:7])[C@H:4]([OH:5])[C@H:2]1[OH:3].[N:19]([O-])=[O:20].[Na+]>O.C(O)(=O)C>[C@@H:1]1([NH:12][C:13]([N:15]([N:19]=[O:20])[CH2:16][CH2:17][CH3:18])=[O:14])[O:9][C@H:8]([CH2:10][OH:11])[C@@H:6]([OH:7])[C@H:4]([OH:5])[C@H:2]1[OH:3]

Komponenten

5

Edukt 2

HCID 23668193Sodium NitriteHCID 536598611-(beta-D-glucopyranosyl)-3-n-propylurea

Produkt 1

HCID 13345998N-propyl-N'(beta-D-glucosyl)-N-nitrosoureaAusbeute 81,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 176Acetic AcidLösungsmittelHCID 962WaterLösungsmittel

Versuchsvorschrift

1-(β-D-glucopyranosyl)-3-n-propylurea (1.50 g) was dissolved in a mixture of water (10 ml) and acetic acid (2 ml), and to the resulting solution was added 560 mg (1.5 mol. equivalents) of sodium nitrite at ambient temperature under stirring to effect the nitrosation. The reaction mixture was treated with Amberlite IR-120 (H+ form) for the removal of sodium ion and then concentrated to dryness below 35° C and under a reduced pressure. Crystallisation of the residue from n-propanol gave 1.35 g of the titled compound. Yield 80%. mp. 112° C (decomposition with foaming). [α]D21 -6° (c 1.0, H2O).

Aufarbeitung

  1. concentrationconcentrated to dryness below 35° C and under a reduced pressure
  2. customCrystallisation of the residue from n-propanol

Quellen und Nachweise

ORD-Eintrag
ord-c1a31d2d350a4b5399a3c30c109ae670
Quelldatensatz
uspto-grants-1978_04
Patentnummer
US04086415

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