N-Methylbutylamine → Methyl 3-{[butyl(methyl)amino]methyl}-5-methylbenzoate

HRID 348903

Reaction equation

HRID 348903 reaction equation
O[CH2:2][C:3]1[CH:4]=[C:5]([CH:10]=[C:11]([CH3:13])[CH:12]=1)[C:6]([O:8][CH3:9])=[O:7].CS(Cl)(=O)=O.[CH3:19][NH:20][CH2:21][CH2:22][CH2:23][CH3:24]>C(Cl)Cl>[CH2:21]([N:20]([CH2:2][C:3]1[CH:4]=[C:5]([CH:10]=[C:11]([CH3:13])[CH:12]=1)[C:6]([O:8][CH3:9])=[O:7])[CH3:19])[CH2:22][CH2:23][CH3:24]

Participants

5

Reactant 3

HCID 8068N-MethylbutylamineHCID 31297Methanesulfonyl chlorideHCID 21086184Methyl 3-(hydroxymethyl)-5-methylbenzoate

Product 1

HCID 21086167Methyl 3-{[butyl(methyl)amino]methyl}-5-methylbenzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Conditions

Temperature
0 °C

Procedure

To methyl 3-(hydroxymethyl)-5-methylbenzoate prepared by the method in EXAMPLE SP-177 (1.1 g, 6.1 mmol), in anhydrous methylene chloride (10 mL) is added methanesulfonyl chloride (663 μL, 8.6 mmol) at −30° C., and the reaction is warmed to 0° C. The reaction stirred 1 h, then filtered. The filtrate is added to N-methylbutylamine (2.1 mL, 18.3 mmol), and the reaction stirred at room temperature 16 h. The solution is concentrated under reduced pressure. Purification by flash chromatography affords the title compound in pure form. ESI MS m/z 250.2 [M+H]+.

Workup

  1. filtrationfiltered
  2. stirringthe reaction stirred at room temperature 16 h
  3. concentrationThe solution is concentrated under reduced pressure
  4. customPurification by flash chromatography

Sources & evidence

ORD record
ord-11bad6c8ad854cd88d2ebe30d073bd0d
Source dataset
uspto-grants-2007_02
Patent number
US07176242B2

Linked notes

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