| 摘要 |
A phosphoric ester of the following formula (I): <IMAGE> (I) in which R1 represents a saturated or unsaturated, linear or branched and substituted or unsubstituted hydrocarbon group having from 8 to 32 carbon atoms, R2, R3 and R4 are the same or different and represent a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, R5 represents a hydrogen atom, a saturated or unsaturated hydrocarbon group having from 1 to 4 carbon atoms, and n is an integer of from 0 to 50. The above novel phosphoric acid ester has excellent detergent performance with very low irritations to living body. A manufacturing method of the ester is also disclosed. According to the method, the ester can be prepared from inexpensive, readily available starting materials by a simple procedure in high purity and high yield. |
