Water → HCID 178448114, compound
Reaction equation
C(N(S(F)(F)F)CC)C.[Cl:10][C:11]1[C:12]([NH:19][C@H:20]2[CH2:25][CH2:24][C@@H:23]([C:26](O)([CH3:28])[CH3:27])[CH2:22][CH2:21]2)=[N:13][CH:14]=[N:15][C:16]=1[CH2:17][CH3:18].O>ClCCl>[Cl:10][C:11]1[C:12]([NH:19][C@H:20]2[CH2:25][CH2:24][C@@H:23]([C:26]([CH3:28])=[CH2:27])[CH2:22][CH2:21]2)=[N:13][CH:14]=[N:15][C:16]=1[CH2:17][CH3:18]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
1.8 g (11 mmol) of diethylaminosulfur trifluoride (DAST) were added to 3.0 g (10 mmol) of the alcohol from Example 1 in 50 ml of dichloromethane at -50° C., and the mixture was stirred at room temperature for 1 hour. It was poured into water and the organic phase was washed with aqueous sodium hydrogen carbonate solution, dried and concentrated. The crude product was chromatographed on silica gel with petroleum ether/ethyl acetate 7:3 to give, first of all, 0.8 g (28.6% of theory) of the product indicated above as a colorless oil, and then 1.5 g (50.5% of theory) of the fluorination product described in Example 6, as a colorless oil (see Example 6).
Workup
- washthe organic phase was washed with aqueous sodium hydrogen carbonate solution
- customdried
- concentrationconcentrated
- customThe crude product was chromatographed on silica gel with petroleum ether/ethyl acetate 7:3
- customto give
Sources & evidence
- ORD record
- ord-74b17e1afc7c426d9ea2e0795d60f8cf
- Source dataset
- uspto-grants-1999_03
- Patent number
- US05889012
Reaction notes
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