| 摘要 |
<p>A method for separating a reaction product and an imide catalyst of the general formula (1) or a degenerate thereof from a reaction mixture obtained by a reaction with the imide catalyst, which comprises extracting the reaction mixture with two organic solvents which are separable from each other to thereby distribute the reaction product and the catalyst or the degenerate to the two organic solvent layers respectively: (1) [wherein R<1> and R<2> are each hydrogen, alkyl, or the like, or alternatively R<1> and R<2> may be united to form a double bond, or an aromatic or non-aromatic ring; and X is oxygen or hydroxyl]. According to this method, an imide catalyst such as N-hydroxyphthalimide and/or a degenerate thereof and a reaction product can be efficiently separated by easy operation from a reaction mixture obtained by using the imide catalyst and a substrate of hydrocarbon or the like.</p> |
