Dichloromethane → (1R,2R)-2-tert-butyldiphenylsilanyloxy-1-(3,4,5-trifluorophenyl)propylamine

HRID 16358

Reaction equation

HRID 16358 reaction equation
FC(F)(F)C(O)=O.C(Cl)Cl.C(OC(=O)[NH:17][C@H:18]([C:39]1[CH:44]=[C:43]([F:45])[C:42]([F:46])=[C:41]([F:47])[CH:40]=1)[C@H:19]([O:21][Si:22]([C:35]([CH3:38])([CH3:37])[CH3:36])([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1)[CH3:20])(C)(C)C.C(=O)([O-])O.[Na+]>C(OCC)(=O)C>[Si:22]([O:21][C@H:19]([CH3:20])[C@H:18]([NH2:17])[C:39]1[CH:44]=[C:43]([F:45])[C:42]([F:46])=[C:41]([F:47])[CH:40]=1)([C:35]([CH3:36])([CH3:37])[CH3:38])([C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)[C:23]1[CH:24]=[CH:25][CH:26]=[CH:27][CH:28]=1

Participants

6

Reactant 4

HCID 6344DichloromethaneHCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 68718850tert-butyl [(1R,2R)-2-(tert-butyldiphenylsilanyloxy)-1-(3,4,5-trifluorophenyl)propyl]carbamate

Product 1

HCID 68719033(1R,2R)-2-tert-butyldiphenylsilanyloxy-1-(3,4,5-trifluorophenyl)propylamineYield 91.1%

Reagents, catalysts & solvents 1

HCID 8857Ethyl AcetateSolvent

Procedure

Trifluoroacetic acid (0.5 mL) was added to a methylene chloride solution (2 mL) of [(1R,2R)-2-tert-butyldiphenylsilanyloxy-1-(3,4,5-trifluorophenyl)propyl]carbamic acid tert-butyl ester (370 mg). The resulting reaction solution was stirred at room temperature for 11 hr, and a saturated sodium hydrogencarbonate aqueous solution and ethyl acetate were added thereto. The organic layer was separated, washed with a saturated sodium hydrogencarbonate aqueous solution and with saturated saline in this order, and concentrated under reduced pressure to give 275 mg of the title compound. The physical property values of this compound were as follows:

Workup

  1. customThe resulting reaction solution
  2. customThe organic layer was separated
  3. washwashed with a saturated sodium hydrogencarbonate aqueous solution and with saturated saline in this order
  4. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-d1b2a85d4dcb4ddd8eee5a9a2e019bbc
Source dataset
uspto-grants-2010_06
Patent number
US07737141B2

Linked notes

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