METHOD OF OBTAINING 1,1,3-TRIHYDROPERFLUOROPROPYL ESTERS OF EPSILON-AMINOCAPRONIC ACID Russian patent published in 2008 - IPC C07C67/20 C07C67/465 C07C31/38 

FIELD: chemistry.

SUBSTANCE: invention pertains to the chemistry of organic compounds, and specifically to the method of obtaining 1,1,3-trihydroperfluoropropyl esters s-aminocapronic acid, which can be used in polymer compositions and exercise a significant influence on improving physical and mechanical properties of the obtained materials. Besides that, in conjunction with phosphorous-organic components they can be used for making compositions with low combustibility. The essence lies in that the method of obtaining 1,1,3-trihydroperfluoropropyl esters of ε-aminocapronic acid with formula HCF₂CF₂CH₂O[C(O)(CH₂)₅NH]_nH (n=1, 2) involves reaction of ε-caprolactam and 1,1,3-trihydroperfluoropropanol in the presence of a catalyst. The used catalyst is diacetate-N-(1,3,2-dioxophospholanyl)-ε-copper caprolactamate with formula . The process is carried out at molar ratio of reagents and catalyst equal to 1:(1-2):(0.05-0.1), at 150-170°C for a period of 0.5-1 hour with subsequent separation of the mixture of ethyl alcohol.

EFFECT: simplification of the process of obtaining low molecular products from ε-caprolactam and "ПФС1", as well as obtaining esters not previously described with number of monomer links equal to 1 and 2.

1 cl, 1 ex, 1 tbl