Bromosuccinimide → 3-[1-(5-Bromo-2-thienyl)cyclobutyl]-5,6,7,8,9,10-hexahydro[1,2,4]triazolo[4,3-a]azocine

HRID 503005Notes

Reaction equation

HRID 503005 reaction equation
[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[C:6]1([C:10]2[N:14]3[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][C:13]3=[N:12][N:11]=2)[CH2:9][CH2:8][CH2:7]1.[Br:21]C1CC(=O)NC1=O>C(O)(=O)C.C(Cl)(Cl)Cl>[Br:21][C:5]1[S:1][C:2]([C:6]2([C:10]3[N:14]4[CH2:15][CH2:16][CH2:17][CH2:18][CH2:19][CH2:20][C:13]4=[N:12][N:11]=3)[CH2:7][CH2:8][CH2:9]2)=[CH:3][CH:4]=1

Participants

5

Reactant 2

HCID 38309BromosuccinimideHCID 684661913-[1-(2-Thienyl)cyclobutyl]-5,6,7,8,9,10-hexahydro[1,2,4]triazolo[4,3-a]azocine

Product 1

HCID 684658823-[1-(5-Bromo-2-thienyl)cyclobutyl]-5,6,7,8,9,10-hexahydro[1,2,4]triazolo[4,3-a]azocineYield 78.5%

Reagents, catalysts & solvents 2

HCID 176Acetic AcidSolventHCID 6212ChloroformSolvent

Procedure

3-[1-(2-Thienyl)cyclobutyl]-5,6,7,8,9,10-hexahydro[1,2,4]triazolo[4,3-a]azocine (60 mg) was dissolved in acetic acid (3 ml) and then bromosuccinimide (38 mg) was added, followed by stirring at room temperature for 8 hours under light-shielding. The reaction solution was diluted with chloroform (30 ml) and then washed with water (10 ml), a 1M aqueous sodium hydroxide solution (10 ml), and brine (10 ml). The organic layer was dried and then concentrated under reduced pressure and the resulting residue was purified by silica gel column chromatography (methanol:chloroform=2:98) to obtain 60 mg of 3-[1-(5-bromo-2-thienyl)cyclobutyl]-5,6,7,8,9,10-hexahydro[1,2,4]triazolo[4,3-a]azocine (white solid).

Workup

  1. washwashed with water (10 ml)
  2. customThe organic layer was dried
  3. concentrationconcentrated under reduced pressure
  4. customthe resulting residue was purified by silica gel column chromatography (methanol:chloroform=2:98)

Sources & evidence

ORD record
ord-72dbb5a19d0949718cf21036bed37a53
Source dataset
uspto-grants-2010_08
Patent number
US07776897B2

Reaction notes

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