Triphenylphosphine → HCID 68565032, compound
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[OH:12])[O:8][C:7]([CH3:14])([CH3:13])[CH:6]=[C:5]2[C:15]([F:18])([F:17])[F:16].O[CH2:20][CH2:21][CH2:22][O:23][C:24]1[CH:38]=[CH:37][C:27]([O:28][C:29]([CH3:36])([CH2:34][CH3:35])[C:30]([O:32][CH3:33])=[O:31])=[CH:26][CH:25]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.N(C(OCC)=O)=NC(OCC)=O>C1COCC1>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[O:12][CH2:20][CH2:21][CH2:22][O:23][C:24]1[CH:38]=[CH:37][C:27]([O:28][C:29]([CH3:36])([CH2:34][CH3:35])[C:30]([O:32][CH3:33])=[O:31])=[CH:26][CH:25]=1)[O:8][C:7]([CH3:14])([CH3:13])[CH:6]=[C:5]2[C:15]([F:16])([F:18])[F:17]Participants
6
Reactant 4
Product 1
Reagents, catalysts & solvents 1
Procedure
To a solution of 6-Chloro-2,2-dimethyl-4-(trifluoromethyl)-2H-chromen-7-ol (0.66 g, 2.95 mmol), methyl 2-(4-(3-hydroxypropoxy)phenoxy)-2-methylbutanoate (1.0 g, 2.97 mmol) and triphenylphosphine (0.85 g, 3.24 mmol) in 25 mL THF is added diethyl azodicarboxylate (0.56 g, 3.21 mmol)(slight exotherm) and the reaction mixture is stirred at ambient temperature overnight (16 h). After concentrating under reduced pressure, the residue obtained is chromatographed over silica gel to provide methyl 2-(4-(3-((6-chloro-2,2-dimethyl-4-(trifluoromethyl)-2H-chromen-7-yl)oxy)propoxy)phenoxy)-2-methylbutanoate (0.99 g).
Workup
- concentrationAfter concentrating under reduced pressure
- customthe residue obtained
- customis chromatographed over silica gel
Sources & evidence
- ORD record
- ord-5d26e891d5f04f90b4e53f5c1d4be094
- Source dataset
- uspto-grants-2007_11
- Patent number
- US07297715B2
Reaction notes
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