Dimethylamine → Lauryldimethylamine

HRID 1075490Notes

Reaction equation

HRID 1075490 reaction equation
[CH3:1][NH:2][CH3:3].[CH2:4](O)[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH3:15]>[H][H].[Cr]([O-])([O-])=O.[Cu+2]>[CH2:4]([N:2]([CH3:3])[CH3:1])[CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH3:15]

Participants

5

Reactant 2

HCID 674DimethylamineHCID 81931-Dodecanol

Product 1

HCID 8168Lauryldimethylamine

Reagents, catalysts & solvents 2

HCID 178418361HCID 178418361, compoundCatalystHCID 178505374HCID 178505374, compoundCatalyst

Procedure

In Example 1 of U.S. Pat. No. 4 138 437, dimethylamine is reacted with 1-dodecanol in the presence of hydrogen and copper chromite as catalyst. To work up the reaction product, it is filtered off from the catalyst and a dodecyldimethylamine is produced as crude product. The crude product is subjected to vacuum distillation to separate off high-boiling byproducts. The distilled C12 -alkyldimethylamine obtained after taking off a first runnings contains about 140 ppm of monomethylamine, 150 ppm of dimethylamine and about 64 ppm of trimethylamine and has a more or less unpleasant odor.

Workup

  1. filtrationis filtered off from the catalyst

Sources & evidence

ORD record
ord-8c7878ee211a4be2bcf122b4937eb0bd
Source dataset
uspto-grants-1999_05
Patent number
US05902903

Reaction notes

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