Patent ID: 7638653

Claim:
A method of preparing a phosphonium compound represented by Formula 1 below, comprising contacting a phosphonium compound represented by Formula 2 below and a salt compound represented by Formula 3 below: [(R 1 )—P(R 2 ) a (R 2′ ) b [Ani] <Formula 1> wherein, a and b are each an integer of 0 to 3 with proviso that a+b=3, R 1 is hydrogen, alkyl, or aryl, R 2 and R 2′ are each independently hydrogen; straight or branched C 1-20 alkyl, alkoxy, allyl, alkenyl, or vinyl; C 3-12 cycloalkyl which is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; C 6-40 aryl which is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; C 7-15 aralkyl which is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; C 3-20 alkynyl which is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; tri(straight or branched C 1-10 alkyl)silyl; tri(straight or branched C 1-10 alkoxy)silyl; tri(C 3-12 cycloalkyl)silyl where the C 3-12 cycloalkyl moiety is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; tri(C 6-40 aryl)silyl where the C 6-40 aryl moiety is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; tri(C 6-40 aryloxy)silyl where the C 6-40 aryloxy moiety is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; tri(straight or branched C 1-10 alkyl)siloxy; tri(C 3-12 cycloalkyl)siloxy where the C 3-12 cycloalkyl moiety is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl; or tri(C 6-40 aryl)siloxy where the C 6-40 aryl moiety is unsubstituted or substituted by a hydrocarbon(s), halogen(s) or C 1-20 haloalkyl, and [Ani] is borate, aluminate, [SbF 6 ]—, [PF 6 ]—, [AsF 6 ]—, perfluoroacetate ([CF 3 CO 2 ]—), perfluoropropionate ([C 2 F 5 CO 2 ]—), perfluorobutyrate ([CF 3 CF 2 CF 2 CO 2 ]—), perchlorate ([ClO 4 ]—), p-toluenesulfonate ([p-CH 3 C 6 H 4 SO 3 ]—), [SO 3 CF 3 ]—, boratabenzene, or carborane which is unsubstituted or substituted by halogen(s), [(R 1 )—P(R 2 ) a (R 2′ ) b ]HX <Formula 2> wherein H is hydrogen, X is a halogen atom, and R 1 , R 2 , R 2′ , a, and b are as defined above, and [C][Ani] <Formula 3> wherein C is alkaline metal or MgX, and [Ani] is as defined above.