p-Toluenesulfonic acid → HCID 131717195, compound

Participants

Reaction Steps

To a solution of 20 g of poly (γ-butyl D-glutamate) (molecular weight 42,000, average degree of polymerization 230) prepared by the NCA method were added 150 ml of n-dodecyl alcohol and 5 g of p-toluenesulfonic acid. The mixture was allowed to react at 60° C. for 20 hours. The reaction mixture was treated in the same way as in Reference Example 1 to obtain a γ-butyl L-glutamate-γ-dodecyl L-glutamate copolymer. Ratio of the butyl ester to the dodecyl ester in the copolymer was 40:60 by NMR measurement.

Provenance & Evidence