Amino group eliminating agent, reaction product production method, reaction precursor, reaction precursor production method, and optically active reaction product production method

A reaction product production method, comprising

• reacting an organic compound having an amino group with an amino group eliminating agent containing a compound (a) represented by the following Formula (a) and additionally reacting the organic compound with a nucleophile:
• in Formula (a), Rf is a substituted or unsubstituted divalent hydrocarbon group containing at least one fluorine atom;
• X1 and X2 are each independently a carbonyl group or a sulfonyl group;
• and Y1 and Y2 are each independently a halogen atom, a substituted or unsubstituted alkylcarbonyloxy group, a substituted or unsubstituted arylcarbonyloxy group, a substituted or unsubstituted alkylsulfonyloxy group, or a substituted or unsubstituted arylsulfonyloxy group.

A reaction precursor containing a compound (e) represented by the following Formula (e) or a compound (f) represented by the following Formula (f), which is used to obtain a reaction product by reacting with a nucleophile:

• in Formulae (e) and (f), Rf is a substituted or unsubstituted divalent hydrocarbon group containing at least one fluorine atom;
• X1 and X2 are each independently a carbonyl group or a sulfonyl group;
• Y2 is a halogen atom, a substituted or unsubstituted alkylcarbonyloxy group, a substituted or unsubstituted arylcarbonyloxy group, a substituted or unsubstituted alkylsulfonyloxy group, or a substituted or unsubstituted arylsulfonyloxy group;
• M1 is a hydrogen atom or a counter ion;
• and R1, R2 and R3 are each independently a hydrogen atom, a polar group, a substituted or unsubstituted saturated hydrocarbon group, a substituted or unsubstituted unsaturated hydrocarbon group, or a substituted or unsubstituted aromatic hydrocarbon group, and at least two of R1, R2 and R3 may be bonded to each other to form a ring.