Triphenylphosphine → HCID 10098703, compound
Reaction equation
C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Cl:20][C:21]1[CH:31]=[C:30]([O:32][CH2:33][CH:34]=[C:35]([Cl:37])[Cl:36])[CH:29]=[C:28]([Cl:38])[C:22]=1[O:23][CH2:24][CH2:25][CH2:26][OH:27].[C:39]([O:43][C:44](=[O:53])[NH:45][C:46]1[CH:51]=[CH:50][C:49](O)=[CH:48][CH:47]=1)([CH3:42])([CH3:41])[CH3:40]>C1COCC1>[C:39]([O:43][C:44](=[O:53])[NH:45][C:46]1[CH:47]=[CH:48][C:49]([O:27][CH2:26][CH2:25][CH2:24][O:23][C:22]2[C:21]([Cl:20])=[CH:31][C:30]([O:32][CH2:33][CH:34]=[C:35]([Cl:37])[Cl:36])=[CH:29][C:28]=2[Cl:38])=[CH:50][CH:51]=1)([CH3:42])([CH3:40])[CH3:41]Participants
5
Procedure
1.69 g of azadicarboxylic acid diisopropyl ester are added dropwise at 0-5° C. to a solution of 1.97 g of triphenylphosphine in 60 ml of THF. After 30 minutes at 0-5° C., 2.5 g of 3-[2,6-dichloro-4-(3,3-dichloroallyloxy)-phenoxy]-propan-1-ol and 1.5 g of (4-hydroxy-phenyl)-carbamic acid tert-butyl ester dissolved in 30 ml of tetrahydrofuran are added dropwise. After being stirred for 24 hours at room temperature, the reaction mixture is concentrated and then purified over silica gel. (4-{3-[2,6-Dichloro-4-(3,3-dichloroallyloxy)-phenoxy]-propoxy}-phenyl)-carbamic acid tert-butyl ester (compound 1.6) is obtained.
Workup
- additionare added dropwise
- concentrationthe reaction mixture is concentrated
- custompurified over silica gel
Sources & evidence
- ORD record
- ord-685334c5ac3e417286cab5a0f977b6b2
- Source dataset
- uspto-grants-2008_08
- Patent number
- US07414064B2
Reaction notes
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