Tetrahydrofuran → HCID 58842532, compound

HRID 1270446Notes

Reaction equation

HRID 1270446 reaction equation
[CH2:1]1[C@@H:3]([NH2:4])[C@@H:2]1[C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1.C(N(CC)C(C)C)(C)C.Br[C:21]1[C:26]([N+:27]([O-:29])=[O:28])=[CH:25][CH:24]=[CH:23][N:22]=1.O1[CH2:34][CH2:33][CH2:32][CH2:31]1>>[N+:27]([C:26]1[C:21]([NH:4][CH2:3][C:2]2([C:5]3[CH:6]=[CH:7][CH:8]=[CH:9][CH:10]=3)[CH2:1][CH2:34][CH2:33][CH2:32][CH2:31]2)=[N:22][CH:23]=[CH:24][CH:25]=1)([O-:29])=[O:28]

Participants

5

Conditions

Temperature
60 °C

Procedure

A solution of compound 1 (1.21 g; 6.39 mmol) in anhydrous tetrahydrofuran (30 mL) was treated with N,N-diisopropylethylamine (1 mL; 5.73 mmol) and 2-bromo-3-nitro-pyridine (1.18 g; 5.81 mmol). The reaction mixture was heated at 60° C. for 21 h. The solvent was removed under reduced pressure and the residue was treated with ethyl acetate and 10% aqueous hydrochloric acid. The organic layer was separated, washed with saturated aqueous sodium chloride, dried (anhydrous sodium sulfate), filtered and concentrated. The product was purified by recrystallization from a minimum amount of ethyl acetate to provide 1.3 g of (3-nitro-pyridin-2-yl)-(1-phenyl-cyclohexylmethyl)-amine as light tan solid. Mass Spec [M+H]+=312.

Workup

  1. customThe solvent was removed under reduced pressure
  2. additionthe residue was treated with ethyl acetate and 10% aqueous hydrochloric acid
  3. customThe organic layer was separated
  4. washwashed with saturated aqueous sodium chloride
  5. dry with materialdried (anhydrous sodium sulfate)
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe product was purified by recrystallization from a minimum amount of ethyl acetate

Sources & evidence

ORD record
ord-502fb2089409414ebc84cef843560e12
Source dataset
uspto-grants-2007_04
Patent number
US07202253B2

Reaction notes

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