| abstract |
NEW MATERIAL:A compound of formula I [R1 is formula II, III (n is 6-14; m is 10-20); R2 is formula II, IV (l is 11-21); where at least one of R1 and R2 is formula II]. EXAMPLE:1,2-Bis[11-(2,4-hexadienyloxy)undecanoyl]glycero-3-phosphochol ine. USE:A material for microcapsules, a material for forming thins films to modify the surface of a variety of materials. PREPARATION:For example, the condensation reaction between an acid anhydride of a compound of formula V and glycero-3-phosphocholine is carried out at (2-10):1 molar ratio of the anhydride to the choline in a solvent in the presence of a reaction accelerator such as N,N-dimethylaminopyridine at 0-30 deg.C for 6-48hr, where both R1 and R2 are formula II. |