Chlorosuccinimide → Ethyl 1-(4-amino-3-chloro-5-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylate

HRID 385458Notes

Reaction equation

HRID 385458 reaction equation
[NH2:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2([C:13]([O:15][CH2:16][CH3:17])=[O:14])[CH2:12][CH2:11][CH2:10][CH2:9]2)=[CH:4][C:3]=1[O:18][CH2:19][C:20]([F:23])([F:22])[F:21].C1C(=O)N([Cl:31])C(=O)C1>C(Cl)(Cl)Cl.O>[NH2:1][C:2]1[C:3]([O:18][CH2:19][C:20]([F:21])([F:22])[F:23])=[CH:4][C:5]([C:8]2([C:13]([O:15][CH2:16][CH3:17])=[O:14])[CH2:12][CH2:11][CH2:10][CH2:9]2)=[CH:6][C:7]=1[Cl:31]

Participants

5

Reactant 2

HCID 31398ChlorosuccinimideHCID 57995594Ethyl 1-(4-amino-3-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylate

Product 1

HCID 57995570Ethyl 1-(4-amino-3-chloro-5-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylateYield 76.3%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6212ChloroformSolvent

Procedure

To a stirred solution of ethyl 1-(4-amino-3-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylate (1.2 g, 3.6 mmol) in dry CHCl3 (60 mL), NCS (0.411 g, 3.08 mmol) was added at 0° C. The reaction mixture was allowed to stir for 3 at room temperature to complete the reaction. The reaction mixture was diluted with water, extracted with DCM (2×100 mL), the combined organic solvents was dried over Na2SO4, filtered and concentrated in vacuo. The crude reaction mixture was purified by Flash column chromatography to yield ethyl 1-(4-amino-3-chloro-5-(2,2,2-trifluoroethoxy)phenyl)cyclopentanecarboxylate (0.860 g) as a thick syrup.

Workup

  1. customthe reaction
  2. extractionextracted with DCM (2×100 mL)
  3. dry with materialthe combined organic solvents was dried over Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe crude reaction mixture
  7. customwas purified by Flash column chromatography

Sources & evidence

ORD record
ord-b31bfa68cec54af08d3e0c16511ce79b
Source dataset
uspto-grants-2013_02
Patent number
US08367863B2

Reaction notes

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