Trifluoroacetic acid → (R)-3-(4-chloro-benzyloxy)-pyrrolidine

HRID 917203Notes

Reaction equation

HRID 917203 reaction equation
C(OC([N:8]1[CH2:12][CH2:11][C@@H:10]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][CH:16]=2)[CH2:9]1)=O)(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[Cl:21][C:18]1[CH:19]=[CH:20][C:15]([CH2:14][O:13][C@@H:10]2[CH2:11][CH2:12][NH:8][CH2:9]2)=[CH:16][CH:17]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 66757611(R)-3-(4-chlorobenzyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 53765332(R)-3-(4-chloro-benzyloxy)-pyrrolidine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of (R)-3-(4-chlorobenzyloxy)-pyrrolidine-1-carboxylic acid tert-butyl ester (0.88 mmol) in dichloromethane cooled at 0° C. was treated with trifluoroacetic acid (20%) and warmed to room temperature and stirred for 2 h. The reaction mixture was concentrated in vacuo, diluted with ethyl acetate and free based with 10% aqueous sodium bicarbonate. The combined organics were dried over sodium sulfate. The product was used without any further purification. ESI-MS m/z: 211(M+1), WV retention time: 0.97 min.

Workup

  1. concentrationThe reaction mixture was concentrated in vacuo
  2. additiondiluted with ethyl acetate
  3. dry with materialThe combined organics were dried over sodium sulfate
  4. customThe product was used without any further purification

Sources & evidence

ORD record
ord-55f25691e642481d871b4a126a70c5af
Source dataset
uspto-grants-2007_09
Patent number
US07271176B2

Reaction notes

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