Trifluoroacetic acid → HCID 23512193, compound

HRID 350469Notes

Reaction equation

HRID 350469 reaction equation
C(OC([N:8]1[CH2:12][CH:11]([O:13][C:14]2[CH:19]=[CH:18][C:17]([F:20])=[CH:16][C:15]=2[F:21])[CH2:10][CH:9]1[CH2:22][O:23][C:24]1[CH:33]=[CH:32][C:27]([C:28]([O:30][CH3:31])=[O:29])=[CH:26][CH:25]=1)=O)(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[F:21][C:15]1[CH:16]=[C:17]([F:20])[CH:18]=[CH:19][C:14]=1[O:13][CH:11]1[CH2:12][NH:8][CH:9]([CH2:22][O:23][C:24]2[CH:33]=[CH:32][C:27]([C:28]([O:30][CH3:31])=[O:29])=[CH:26][CH:25]=2)[CH2:10]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 69333033Methyl 4-(1-(tert-butoxycarbonyl)-4-(2,4-difluorophenoxy)-2-pyrrolidinyl methoxy]benzoate

Product 1

HCID 23512193HCID 23512193, compoundYield 92.1%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a stirred solution of methyl 4-[1-(tert-butoxycarbonyl)-4-(2,4-difluorophenoxy)-2-pyrrolidinyl methoxy]benzoate (529 mg, 1.15 mmol) in CH2Cl2 (5 ml) was added TFA (5 ml). The mixture was stirred overnight. The mixture was concentrated in vacuo and the residue was made basic by the addition of sat. NaHCO3. The mixture was extracted with CHCl3 (2×100 ml). The extracts were dried over K2CO3 and evaporated to give methyl 4-[4-(2,4-difluorophenoxy)-2-pyrrolidinyl methoxy]benzoate (385 mg, 92%) as a yellow oil. 1H-NMR (CDCl3) δ 1.89–1.95 (m, 1 H), 2.28–2.35 (m, 1 H), 3.09 (dd, J=12.5, 4.9 Hz, 1 H), 3.33 (d, J=12.5 Hz, 1 H), 3.60 (m, 1 H), 3.86 (s, 3 H), 4.10 (d, J=5.6 Hz, 2H), 4.84(m, 1H), 6.73–6.89(m, 3 H), 6.91 (d, J=8.5 Hz, 2H), 7.96 (d, J=8.5 Hz, 2 H).

Workup

  1. concentrationThe mixture was concentrated in vacuo
  2. additionthe residue was made basic by the addition of sat. NaHCO3
  3. extractionThe mixture was extracted with CHCl3 (2×100 ml)
  4. dry with materialThe extracts were dried over K2CO3
  5. customevaporated

Sources & evidence

ORD record
ord-df6e7d85c4c745528ccef8d48614e2c0
Source dataset
uspto-grants-2007_02
Patent number
US07179819B2

Reaction notes

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