Aminimide compound, aminimide composition, curing agent, epoxy resin composition, method for producing aminimide compound, encapsulant, and adhesive

An aminimide compound represented by the following formula (1), (2) or (3):

• wherein, in the formula (1) or (2), each R1 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 15 carbon atoms and optionally having a hydroxy group, a carbonyl group, an ester bond, or an ether bond;
• R2 and R3 represent a heterocyclic ring having 7 or less carbon atoms in which R2 and R3 are linked to each other, and the heterocyclic ring is a pyrrole ring, a morpholine ring, a thiazine ring, a piperidine ring, a hexamethyleneimine ring, or an azepine ring;
• each R4 independently represents a hydrogen atom, or a monovalent organic group having 1 to 30 carbon atoms and optionally containing an oxygen atom;
• and n represents an integer of 1 to 3,
• wherein, in the formula (3), each R1 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 15 carbon atoms and optionally having a hydroxy group, a carbonyl group, an ester bond, or an ether bond;
• R2 and R3 each independently represent an unsubstituted or substituted alkyl group having 1 to 12 carbon atoms, aryl group, aralkyl group, or heterocyclic ring having 7 or less carbon atoms in which R2 and R3 are linked to each other;
• each R4 independently represents a hydrogen atom, or a monovalent or n-valent organic group having 1 to 30 carbon atoms and optionally containing an oxygen atom;
• and n represents an integer of 1 to 3.