Dicyclohexylcarbodiimide → N,N'-Dicyclohexylurea

HRID 329341

Reaktionsgleichung

Reaktionsgleichung von HRID 329341
C(C1C=NC(C2C=CC([OH:23])=CC=2)=NC=1)CCCCCCCCC.C([C@H]1CC[C@H](C(O)=O)CC1)CCCC.[CH:38]1([N:44]=[C:45]=[N:46][CH:47]2[CH2:52][CH2:51][CH2:50][CH2:49][CH2:48]2)[CH2:43][CH2:42][CH2:41][CH2:40][CH2:39]1>ClCCl>[CH:47]1([NH:46][C:45]([NH:44][CH:38]2[CH2:39][CH2:40][CH2:41][CH2:42][CH2:43]2)=[O:23])[CH2:52][CH2:51][CH2:50][CH2:49][CH2:48]1

Komponenten

5

Versuchsvorschrift

A solution of 35.4 g of 4-(5-decylpyrimidin-2-yl)phenol, 22.5 g of trans-4-pentylcyclohexanecarboxylic acid and 23.4 g of N,N'-dicyclohexylcarbodiimide in 600 ml of dichloromethane is stirred at 20° C. for 12 hours. The N,N'-dicyclohexylurea formed is filtered off, and the filtrate is chromatographed over 5 kg of silica gel using dichloromethane. The product-containing fraction gives 21.5 g of colorless crystals after recrystallization from n-hexane.

Quellen und Nachweise

ORD-Eintrag
ord-52fde18c50ee408583b6415095779c69
Quelldatensatz
uspto-grants-1990_01
Patentnummer
US04891151

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