Trimethylsilyl iodide → 5-(3-Aminomethyl-cyclohexyl)-3-methyl-5h-2-oxa-1,5,6-triaza-cyclopenta[a]naphthalen-4-one hydroiodide

HRID 1823269Notes

Reaction equation

HRID 1823269 reaction equation
C(OC(=O)[NH:10][CH2:11][CH:12]1[CH2:17][CH2:16][CH2:15][CH:14]([N:18]2[C:27]3[C:22](=[CH:23][CH:24]=[CH:25][N:26]=3)[C:21]3=[N:28][O:29][C:30]([CH3:31])=[C:20]3[C:19]2=[O:32])[CH2:13]1)C1C=CC=CC=1.[I:34][Si](C)(C)C>ClCCl>[IH:34].[NH2:10][CH2:11][CH:12]1[CH2:17][CH2:16][CH2:15][CH:14]([N:18]2[C:27]3[C:22](=[CH:23][CH:24]=[CH:25][N:26]=3)[C:21]3=[N:28][O:29][C:30]([CH3:31])=[C:20]3[C:19]2=[O:32])[CH2:13]1

Participants

4

Reactant 2

HCID 85247Trimethylsilyl iodideHCID 69652675[3-(3-Methyl-4-oxo-5H-2-oxa-1,5,6-triaza-cyclopenta-[a]naphthalen-5-yl)-cyclohexylmethyl]-carbamic acid benzyl ester

Product 1

HCID 221701525-(3-Aminomethyl-cyclohexyl)-3-methyl-5h-2-oxa-1,5,6-triaza-cyclopenta[a]naphthalen-4-one hydroiodide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Dissolve [3-(3-methyl-4-oxo-5H-2-oxa-1,5,6-triaza-cyclopenta-[a]naphthalen-5yl)-cyclohexylmethyl]-carbamic acid benzyl ester (0.52 g, 0.0012 mol) in dry dichloromethane and cool in an ice bath under nitrogen. Add iodotrimethylsilane (0.50 mL, 0.0035 mol) and stir overnight while warming to ambient temperature. Quench the mixture with methanol (approx. 5 mL) and concentrate in vacuo. Take up the resulting residue in minimal dichloromethane and add diethyl ether. Concentrate and titrate from dichloromethane/diethyl ether to give a dark solid. Decant the solvent and dry the solid in vacuo to give a near quantitative yield of the crude amine salt as a dark solid. Use directly without purification. MS(ES): (M+1)+ 313.2, 314.2 m/z.

Workup

  1. temperaturecool in an ice bath under nitrogen
  2. customQuench the mixture with methanol (approx. 5 mL)
  3. concentrationconcentrate in vacuo
  4. additionadd diethyl ether
  5. concentrationConcentrate
  6. customtitrate from dichloromethane/diethyl ether to give a dark solid
  7. customDecant the solvent
  8. customdry the solid in vacuo

Sources & evidence

ORD record
ord-fa42a99d8571436ea144b04400a2c31e
Source dataset
uspto-grants-2006_05
Patent number
US07037921B2

Reaction notes

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