Dicyclohexylcarbodiimide → HCID 20095050, compound
Reaction equation
[CH2:1]([CH:9]1[CH2:17][C:16]2[C:11](=[CH:12][CH:13]=[C:14]([C:18]([OH:20])=[O:19])[CH:15]=2)[CH2:10]1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8].[CH2:21]([C:31]1[CH:32]=[N:33][C:34]([C:37]2[CH:42]=[CH:41][C:40](O)=[CH:39][CH:38]=2)=[N:35][CH:36]=1)[CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH3:30].C1(N=C=NC2CCCCC2)CCCCC1.N1(C2C=CN=CC=2)CCCC1>ClCCl>[CH2:1]([CH:9]1[CH2:17][C:16]2[C:11](=[CH:12][CH:13]=[C:14]([C:18]([O:20][C:40]3[CH:39]=[CH:38][C:37]([C:34]4[N:33]=[CH:32][C:31]([CH2:21][CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH3:30])=[CH:36][N:35]=4)=[CH:42][CH:41]=3)=[O:19])[CH:15]=2)[CH2:10]1)[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH3:8]Participants
Procedure
1.00 g (3.64 mM) of 2-octylindan-5-carboxylic acid and 1.13 g (3.62 mM) of 5-decyl-2-(4-hydroxyphenyl)pyrimidine were dissolved in 30 ml of dichloromethane. To the solution, 0.74 g (3.59 mM) of N,N'-dicyclohexylcarbodiimide (DCC) and 0.05 g of 4-pyrrolidinopyridine were added, followed by stirring for 5 hours. The resultant N,N'-dicyclohexylurea was recovered by filtration, washed with dichloromethane, and added to the filtrate. The resultant dichloromethane solution was subjected to distillation under reduced pressure. The residue was purified by silica gel column chromatography (eluent: toluene) and recrystallized from a mixture solvent (toluene/methanol) to obtain 1.23 g of 4-(5-decylpyrimidine-2-yl)phenyl 2-octylindan-5-carboxylate (Yield: 60.3%). ##STR131##
Workup
- filtrationThe resultant N,N'-dicyclohexylurea was recovered by filtration
- washwashed with dichloromethane
- additionadded to the filtrate
- distillationThe resultant dichloromethane solution was subjected to distillation under reduced pressure
- customThe residue was purified by silica gel column chromatography (eluent: toluene)
- customrecrystallized from a mixture solvent (toluene/methanol)
Sources & evidence
- ORD record
- ord-677f0f8c92ab42f78879d5f3f1ee1970
- Source dataset
- uspto-grants-1995_01
- Patent number
- US05385692
Reaction notes
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