Method for producing compound, compound, epoxy curing agent, and method for producing amine composition

A method for producing a compound represented by Formula (1-2), the method comprising filling a compound represented by Formula (5-2) with ethylene and subjecting to alkylation in the presence of a base,

• wherein a temperature of a reaction solution at the time of ethylene filling is from 0 to 10° C., and a filling pressure of the ethylene is from 1.5 to 2.3 MPa:
• where in Formula (5-2), RX2 to RZ2 each independently represent a hydrogen atom or an ethyl group, and n is an integer of from 1 to 3;
• where in Formula (1-2), RA2 to RD2 each independently represent a hydrogen atom or an ethyl group, and n is an integer of from 1 to 3,
• wherein at least two of RA2 to RD2 are ethyl groups.

A compound represented by Formula (1-1):

• where in Formula (1-1), RA to RD each independently represent a hydrogen atom, an ethyl group, an n-propyl group, or an isopropyl group, and n is an integer of from 1 to 3,
• wherein at least two of RA to RD are independently an ethyl group, an n-propyl group, or an isopropyl group, and
• Formula (1-1) excludes:
• a case where n is 1, a —C(RC)(RD)(NH2) group is at para position and at meta position, and either RA or RB, and either RC or RD are each an n-propyl group, and the remaining two of RA to RD are hydrogen atoms;
• and
• a case in where n is 1, a —C(RC)(RD)(NH2) group is at ortho position, either RA or RB, and either RC or RD are each an ethyl group, and the remaining two of RA to RD are hydrogen atoms.

A method for producing an amine composition containing a compound represented by Formula (1-2), the method comprising filling a compound represented by Formula (5-2) with ethylene and subjecting to alkylation in the presence of a base,

• wherein a temperature of a reaction solution at the time of the ethylene filling is from 0 to 10° C., and a filling pressure of the ethylene is from 1.5 to 2.3 MPa:
• where in Formula (5-2), RX2 to RZ2 each independently represent a hydrogen atom or an ethyl group, and n is an integer of from 1 to 3;
• where in Formula (1-2), RA2 to RD2 each independently represent a hydrogen atom or an ethyl group, and n is an integer of from 1 to 3,
• wherein at least two of RA2 to RD2 are ethyl groups.