Dimethyl Carbonate → HCID 86199295, compound

HRID 1840252Notes

Reaction equation

HRID 1840252 reaction equation
[CH3:1][N+:2]([CH3:12])([CH3:11])[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10].CN(C)CCCCCCCC.[C:24](=[O:29])([O:27]C)[O:25]C>CO>[C:24](=[O:25])([O-:29])[O-:27].[CH3:1][N+:2]([CH3:11])([CH3:12])[CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10].[CH3:12][N+:2]([CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH3:10])([CH3:11])[CH3:1]

Participants

5

Reactant 3

HCID 12021Dimethyl CarbonateHCID 16224DimethyloctylamineHCID 24950Octyltrimethylammonium

Product 1

HCID 86199295HCID 86199295, compound

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent2×

Procedure

Among these preparation methods, preferred are those by anion exchange with a quaternary ammonium carbonate. A specific example for preparation of a quaternary ammonium salts of a carboxyl-containing polymer, in the case of a trimethyloctylammonium salt of polyacrylic acid, is as follows: Into a pressure vessel, are charged dimethyloctylamine (1 mole) and dimethyl carbonate (1 mole or more) together with methanol, and reacted at an elevated temperature (at about 120° C.) under pressure (about 5 kg/cm2) to obtain a solution in methanol of trimethyloctylammonium carbonate. Then, the solution is added at a temperature of 80-90° C. gradually to an aqueous solution of polyacrylic acid, whereby carbon dioxide is simultaneously generated vigorously. Generated carbon dioxide and methanol are distilled off to obtain an aqueous solution of trimethyl-octylammonium salt of polyacrylic acid.

Workup

  1. customAmong these preparation methods
  2. additioncontaining polymer
  3. customreacted at an elevated temperature (at about 120° C.) under pressure (about 5 kg/cm2)

Sources & evidence

ORD record
ord-d79b016189fc4f8eba5a6414c9d2c314
Source dataset
uspto-grants-2004_01
Patent number
US06680286B1

Reaction notes

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