| 摘要 |
Quaternary ammonium salts of general formula (I) <CHEM> wherein: R is a saturated or unsaturated, linear or branched alkyl radical of C1 to C8. R' is a saturated or unsaturated, linear or branched alkyl radical of C1 to C12, or a benzyl radical. n is a number equal to 2 or 3. X<(-)> is a halogenide anion, such as Cl<(-)>, Br<(-)>, I<(-)>, are used as phase transfer catalysts, in heterogeneous ionic reactions wherein the reagents are in different phase and have different polarity. |
