| abstract |
The present invention discloses novel phosphonium and imidazolium salts and methods for their preparation. The novel phosphonium and imidazolium compounds are useful as polar solvents and have the formula (I).n n n Formula (I) Q + X - n n n Wherein Q + is the formula (a) or formula (b);n n n Formula (a) n n n Formula (b) n n n X − is the following formula (c), formula (d) or formula (e);n n n Formula (c) n n n Formula (d) n n n Formula (e) n n n Wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 9 , R 10 , R 11 , R 12 and R 13 are each independently a hydrocarbon group; R 6 , R 7 and R 8 are each independently hydrogen or a hydrocarbon group. |