Trifluoroacetic acid → (4-Chloro-benzyl)-isopropyl-pyrrolidin-3-yl-amine

HRID 1983778Notes

Reaction equation

HRID 1983778 reaction equation
C(OC([N:8]1[CH2:12][CH2:11][CH:10]([N:13]([CH2:17][C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)[CH:14]([CH3:16])[CH3:15])[CH2:9]1)=O)(C)(C)C.FC(F)(F)C(O)=O>ClCCl>[Cl:24][C:21]1[CH:22]=[CH:23][C:18]([CH2:17][N:13]([CH:14]([CH3:15])[CH3:16])[CH:10]2[CH2:11][CH2:12][NH:8][CH2:9]2)=[CH:19][CH:20]=1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 667575503-[(4-Chloro-benzyl)-isopropyl-amino]-pyrrolidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 23137053(4-Chloro-benzyl)-isopropyl-pyrrolidin-3-yl-amine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A solution of 3-[(4-chloro-benzyl)-isopropyl-amino]-pyrrolidine-1-carboxylic acid tert-butyl ester in dichloromethane cooled at 0° C. was treated with trifluoroacetic acid (20%) and warmed to room temperature and stirred for 2 hours. 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: 253 (M+1, UV retention time: 0.59 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-3d71eac788fe4420bc50892c573c165c
Source dataset
uspto-grants-2009_06
Patent number
US07541365B2

Reaction notes

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