| 摘要 |
PURPOSE: An ionic liquid coated enzyme is provided, thereby improving the stereoselectivity and stability of the enzyme. CONSTITUTION: An ionic liquid coated enzyme is provided, wherein the ionic liquid is an organic salt which is liquid phase at 150 deg. C or less; the ionic liquid comprises organic cation or organic or inorganic anion of hetero ring compounds; the organic cation of the hetero ring compound contains 1 to 4 hetero atoms selected from the group consisting of N, O, S or the combination thereof; the organic cation of the hetero ring compound is selected from the group consisting of imidazolium, pyridinium, pyridazinium, pyrimidinium, pyrazinium, pyrazolium, thiazolium, oxazolium, and triazolium; the organic or inorganic anion of the hetero ring compound is selected from the group consisting of bis (perfluoroethylsulfonyl) imide, bis (trifluoromethylsulfonyl) imide, tris (trifluoromethylsulfonylmethamide), trifluoromethansulfonimide, trifluoromethylsulfonimide, trifluoromethylsulfonate, AsF6-, ClO4-, PF6- and BF4-; the ionic liquid is a compound of the formula 1, wherein X is selected from phenyl, substituted phenyl, methacryloyl ester, OCOCH3, CO2CH3 and CN; Y is BF4 or PF6; and n is an integer of 2 to 5; and the enzyme is lipase. |
