Method of producing alkenyl phosphorus compound

A method of producing an alkenyl phosphorus compound represented by the general formula (4) shown below, comprising allowing a phosphorus compound represented by the following general formula (1):

• wherein, in general formula (1), each of R1 and R2 independently represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aryloxy group;
• wherein R1 and R2 may be bonded with each other to form a cyclic structure, to react with an alkynyl compound represented by the following general formula (2):
• wherein, in general formula (2), each of R3 and R4 independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, or a substituted or unsubstituted silyl group, in the presence of a transition metal complex, a Lewis acid and a low-polarity additive, to produce the alkenyl phosphorus compound represented by the general formula (4):
• wherein, in general formula (4), the definitions of R13 and R14 are the same as those of R1 and R2 in the general formula (1), and the definitions of R15 and R16 are the same as those of R3 and R4 in the general formula (2), and
• wherein the Lewis acid is a metal compound.