Trifluoroacetic acid → (7-Nitro-1,2,3,4-tetrahydro-naphthalen-2-yl)-piperidin-4-ylmethyl-propyl-amine

HRID 983467Notes

Reaction equation

HRID 983467 reaction equation
C(OC([N:8]1[CH2:13][CH2:12][CH:11]([CH2:14][N:15]([CH:19]2[CH2:28][CH2:27][C:26]3[C:21](=[CH:22][C:23]([N+:29]([O-:31])=[O:30])=[CH:24][CH:25]=3)[CH2:20]2)[CH2:16][CH2:17][CH3:18])[CH2:10][CH2:9]1)=O)(C)(C)C.C(NC(N1CCC(CN(CC)C2CCC3C(=CC(NC(=O)C4C=CC(S(C)(=O)=O)=CC=4)=CC=3)C2)CC1)=O)(C)C.FC(F)(F)C(O)=O>C(Cl)Cl>[N+:29]([C:23]1[CH:22]=[C:21]2[C:26]([CH2:27][CH2:28][CH:19]([N:15]([CH2:14][CH:11]3[CH2:10][CH2:9][NH:8][CH2:13][CH2:12]3)[CH2:16][CH2:17][CH3:18])[CH2:20]2)=[CH:25][CH:24]=1)([O-:31])=[O:30]

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 113074364-({Ethyl-[7-(4-methanesulfonyl-benzoylamino)-1,2,3,4-tetrahydro-naphthalen-2-yl]-amino}-methyl)-piperidine-1-carboxylic acid isopropylamideHCID 686245334-{[(7-Nitro-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester

Product 1

HCID 22560628(7-Nitro-1,2,3,4-tetrahydro-naphthalen-2-yl)-piperidin-4-ylmethyl-propyl-amine

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 4-{[(7-nitro-1,2,3,4-tetrahydro-naphthalen-2-yl)-propyl-amino]-methyl}-piperidine-1-carboxylic acid tert-butyl ester, prepared as in Example 1 (1.12 g, 2.60 mmol) in methylene chloride (30 mL) under a nitrogen atmosphere was added trifluoroacetic acid (10 mL). The reaction was stirred at room temperature for 30 min. and concentrated in vacuo. The residue was partitioned between EtOAc (50 mL) and 10% aq. KOH (50 mL). The organic layer was separated, dried over MgSO4, filtered, and concentrated to afford (7-nitro-1,2,3,4-tetrahydro-naphthalen-2-yl)-piperidin-4-ylmethyl-propyl-amine (845 mg).

Workup

  1. concentrationconcentrated in vacuo
  2. customThe residue was partitioned between EtOAc (50 mL) and 10% aq. KOH (50 mL)
  3. customThe organic layer was separated
  4. dry with materialdried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-558022e12e69458f98adbfcf49d5a06f
Source dataset
uspto-grants-2005_03
Patent number
US06864266B2

Reaction notes

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