Carbon Dioxide → L-lysine carbonate

Reaction equation

[NH2:1][C@H:2]([C:8]([OH:10])=[O:9])[CH2:3][CH2:4][CH2:5][CH2:6][NH2:7].C(=O)=[O:12]>O>[C:8](=[O:9])([OH:12])[OH:10].[NH2:1][C@H:2]([C:8]([OH:10])=[O:9])[CH2:3][CH2:4][CH2:5][CH2:6][NH2:7]

Participants

Procedure

146 g of lysine are dissolved in water and the solution is saturated with CO2 so as to obtain a 30% solution of lysine carbonate. Separately 226.6 g of 4-allyloxy-3-chlorophenylacetic acid are dissolved in 800 ml of isopropyl alcohol. The two solutions are joined by pouring the alcoholic solution into the aqueous solution with light stirring. Stirring is continued 5 hours at room temperature.