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

HRID 14111

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

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

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

Sources & evidence

ORD record: ord-ecb8757435e74c26a364a25fc1369c41
Source dataset: uspto-grants-2010_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07727997B2

Linked notes

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