Dicyclohexylcarbodiimide → N,N'-Dicyclohexylurea

HRID 479916

Reaktionsgleichung

Reaktionsgleichung von HRID 479916
C1C(C(O)=[O:8])=CC(C2C3C=CC(O)=CC=3OC3C=2C=CC(C=3)=O)=C(C(O)=O)C=1.ON1C(=O)CCC1=O.[CH:37]1([N:43]=[C:44]=[N:45][CH:46]2[CH2:51][CH2:50][CH2:49][CH2:48][CH2:47]2)[CH2:42][CH2:41][CH2:40][CH2:39][CH2:38]1>CN(C=O)C>[C:44]([NH:43][CH:37]1[CH2:38][CH2:39][CH2:40][CH2:41][CH2:42]1)([NH:45][CH:46]1[CH2:51][CH2:50][CH2:49][CH2:48][CH2:47]1)=[O:8]

Komponenten

5

Edukt 3

HCID 10868DicyclohexylcarbodiimideHCID 80170N-HydroxysuccinimideHCID 2725051ST51005980

Produkt 1

HCID 4277N,N'-Dicyclohexylurea

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

To a stirred solution of 5- or 6-carboxyfluorescein (0.5 mmol) in dry DMF (5 mL) were added N-hydroxysuccinimide (1.1 equiv.) and 1,3-dicylcohexylcarbodiimide (1.1 equiv.). After about 10 minutes, a white solid (dicyclohexylurea) started forming. The reaction mixture was stirred under nitrogen at room temperature overnight. TLC (9:1 CH2Cl2-MeOH) indicated complete disappearance of the starting material.

Quellen und Nachweise

ORD-Eintrag
ord-c898184911a94e02accb94a75a08d4ac
Quelldatensatz
uspto-grants-2003_11
Patentnummer
US06649351B2

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