3-Nitro-9-(2-pyrrolidin-1-yl-ethyl)-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocycloheptene → 9-(2-Pyrrolidin-1-yl-ethyl)-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-3-ylamine

HRID 1041691Notes

Reaction equation

HRID 1041691 reaction equation
[N+:1]([C:4]1[CH:21]=[CH:20][C:7]2[N:8]([CH2:13][CH2:14][N:15]3[CH2:19][CH2:18][CH2:17][CH2:16]3)[CH2:9][CH2:10][CH2:11][O:12][C:6]=2[CH:5]=1)([O-])=O>[Pd].C(O)C>[N:15]1([CH2:14][CH2:13][N:8]2[C:7]3[CH:20]=[CH:21][C:4]([NH2:1])=[CH:5][C:6]=3[O:12][CH2:11][CH2:10][CH2:9]2)[CH2:19][CH2:18][CH2:17][CH2:16]1

Participants

4

Reactant 1

HCID 672645583-Nitro-9-(2-pyrrolidin-1-yl-ethyl)-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocycloheptene

Product 1

HCID 672643719-(2-Pyrrolidin-1-yl-ethyl)-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-3-ylamine

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

10% Palladium on Carbon (50% Wet) (174 mg) and 3-Nitro-9-(2-pyrrolidin-1-yl-ethyl)-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocycloheptene (270 mg, 0.93 mmol) in Ethanol (15 mL) was shaken under an atmosphere of Hydrogen (40 psi) overnight. The mixture was filtered over Celite, washing with 60 mL ethanol. After conc., 9-(2-Pyrrolidin-1-yl-ethyl)-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-3-ylamine was obtained as an oil (224 mg, 92%). 1H-NMR (CDCl3): 6.80 (d, 1H, J=8.0 Hz), 6.34 (m, 2H), 4.05 (m, 2H), 3.44 (br s, 2H), 3.27 (m, 2H), 3.14 (t, 2H, J=5.6 Hz), 2.65 (t, 2H, J=7.2 Hz), 2.56 (m, 4H), 1.98 (m, 2H), 1.78 (m, 4H).

Workup

  1. filtrationThe mixture was filtered over Celite
  2. washwashing with 60 mL ethanol

Sources & evidence

ORD record
ord-8b74809266c049c0918df4186126e47e
Source dataset
uspto-grants-2013_10
Patent number
US08552186B2

Reaction notes

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