Compound, photocurable composition, cured product of same, printing ink, and printed matter curing the printing ink

A novel compound having a molecular structure represented by general formula 1 below,

• wherein R1 is an alkyl group having 1 to 10 carbon atoms, R2 is an alkyl group having 1 to 12 carbon atoms, a hydroxyalkyl group having 2 to 4 carbon atoms, or an alkyl group having 2 to 4 carbon atoms and substituted by an alkoxy group having 1 or 2 carbon atoms, R3 is an alkyl group having 1 to 12 carbon atoms, a hydroxyalkyl group having 2 to 4 carbon atoms, a methoxyethyl group, or an ethoxyethyl group, R2 and R3 are alkylene groups which are combined to form a cyclic structure together with a nitrogen atom, R2 and R3 are cyclic structure-forming parts which are combined to form a morpholine skeleton, a N-methylpiperazine skeleton, or a 2,6-dimethylmorpholine skeleton together with a nitrogen atom,
• R4 to R7 are each independently a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a phenyl group,
• Y1 is an alkyl group (y1-1) selected from the group consisting of a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a 1-methylundecyl group, a 1-chlorododecyl group, a 1,1,1-trichlorododecyl group, a 1-chlorooctadecyl group, a 1,1,1-trichlorooctadecyl group, a 1-hydroxydodecyl group, a 1-hydroxyoctadecyl group, an aralkyl group (y1-2) having 7 to 19 carbon atoms, a structural part represented by structural formulae (y1-3), (y1-4), (y1-5), (y1-6), (y1-7), (y1-8) and (y1-9) below
• R9—OR8—OmR8— (y1-3)
• in the formula (y1-3), R8 represents an alkylene group having 2 to 4 carbon atoms, R9 represents a hydrogen atom, a phenyl group, or an alkyl group having 1 to 4 carbon atoms, and m represents an integer of 0 to 20,
• a structural part (y1-4) represented by structural formula (y1-4) below
• in the formula (y1-4), R8 represents an alkylene group having 2 to 4 carbon atoms, R9 represents a hydrogen atom, a phenyl group, or an alkyl group having 1 to 4 carbon atoms, R10 represents a hydrogen atom or a methyl group, and m represents an integer of 0 to 20, a structural part (y1-5) represented by structural formula (y1-5) below
• in the formula (y1-5), R10 represents a hydrogen atom or a methyl group, and Ru represents a group selected from the group consisting of a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a 2-ethylbutyl group, an isopentyl group, a 1-methylpentyl group, a 1,3-dimethylbutyl group, a 1-methylhexyl group, an isoheptyl group, a 1,1,3,3-tetramethylbutyl group, a 2,2,4,4-tetramethylbutyl group, a 1-methylheptyl group, a 3-methylheptyl group, a 2-ethylhexyl group, a 1,1,3-trimethylhexyl group, a 1,1,3,3-tetramethylpentyl group, an isodecyl group, a 1-methylundecyl group, a 1,1,3,3,5,5-hexamethylhexyl group, a cycloheptyl group, a cyclohexyl group, a cyclopentyl group, or an aryl group having 6 to 18 carbon atoms,
• a structural part (y1-6) represented by structural formula (y1-6) below
• in the formula (y1-6), R12 represents a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, a hexadecyl group, a heptadecyl group, an octadecyl group, a 2-ethylbutyl group, an isopentyl group, a 1-methylpentyl group, a 1,3-dimethylbutyl group, a 1-methylhexyl group, an isoheptyl group, a 1,1,3,3-tetramethylbutyl group, a 2,2,4,4-tetramethylbutyl group, a 1-methylheptyl group, a 3-methylheptyl group, a 2-ethylhexyl group, a 1,1,3-trimethylhexyl group, a 1,1,3,3-tetramethylpentyl group, an isodecyl group, a 1-methylundecyl group, a 1,1,3,3,5,5-hexamethylhexyl group, a cycloheptyl group, a cyclohexyl group, or a cyclopentyl group,
• a structural part (y1-7) represented by structural formula (y1-7) below
• in the formula (y1-7), R8 represents an alkylene group having 2 to 4 carbon atoms, R13 represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, or a halogen atom, and m represents an integer of 0 to 20,
• a structural part (y1-8) represented by structural formula (y1-8) below
• in the formula (y1-8), R8 each independently represent an alkylene group having 2 to 4 carbon atoms, R10 represents a hydrogen atom or a methyl group, R14 represents a hydrocarbon group having 3 to 25 carbon atoms and (p+1) bonds, 1 represents an integer of 0 to 20, and p represents an integer of 1 to 3, or
• a structural part (y1-9) represented by structural formula (y1-9) below
• in the formula (y1-9), R15 represents an alkyl group having 4 to 18 carbon atoms, an aliphatic cyclic hydrocarbon group having 6 to 10 carbon atoms, or an aromatic group,
• X1 is an ethylene group, a 1,3-propylene group, a 1,2-propylene group, or a 2,3-propylene group,
• X2 is a hydrogen atom or a methyl group, X3 is a hydrogen atom, a methyl group, or an ethyl group,
• or X2 and X3 integrally represent an ethylene group, a 1,3-propylene group, a 1,2-propylene group, or a 2,3-propylene group while forming a covalent bond in a broken line portion, or X1, X2, and X3 integrally represent a tetravalent aliphatic hydrocarbon group which forms a bicyclo ring together with a nitrogen atom and is represented by structural formula below
• Y2 represents a structural part structural part represented by one selected from the group consisting of formulae (y2-1) to (y2-9) below:
• —NH—R16—NH— (y2-1)
• in the formula (y2-1), R16 represents a linear or cyclic alkylene group having 2 to 18 carbon atoms, a phenylene group, a xylylene group, a phenylene group having an alkyl group having 1 to 3 carbon atoms as a nuclear substituent, or a xylylene group having an alkyl group having 1 to 3 carbon atoms as a nuclear substituent),
• —NH—R17O—R18O—R17—NH— (y2-2)
• in the formula (y2-2), R17 represents a linear or branched alkylene group having 2 to 6 carbon atoms or a phenylene group, R18 represents a linear or branched alkylene group having 2 to 6 carbon atoms or a phenylene group, and q represents an integer of 1 to 22),
• in the formula (y2-3), R19 to R22 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms,
• in the formula (y2-4), R23 represents an oxygen atom, a methylene group, an ethylene group, an ethylidene group, a 2,2-propylene group, or a 1,3-propylene group,
• in the formula (y2-5), R24 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms, R25 each independently represent a hydrogen atom or a linear or branched alkyl group having 1 to 3 carbon atoms, and R26 represents an oxygen atom, a methylene group, a 2,2-propylene group, a sulfonyl group, or a carbonyl group, or in the general formula 1, n is 2 or 3,
• in the formula (y2-6), R27 represents an alkylene group having 2 to 6 carbon atoms, R28 represents a hydrocarbon group having 4 to 12 carbon atoms and a number of bonds of (n+1), and r represents an integer of 0 to 3,
• —O—R29—O— (y2-7)
• in the formula (y2-7), R29 represents a linear, branched, or cyclic alkylene group having 2 to 18 carbon atoms, a phenylene group, or a xylylene group
• —O—R30O—R30qO— (y2-8)
• in the formula (y2-8), R30 each independently represent an alkylene group having 2 to 6 carbon atoms, and q represents an integer of 1 to 20), or in the general formula 1, n is 2 or 3,
• in the formula (y2-9), R31 represents a hydrocarbon group having 4 to 12 carbon atoms and a number of bonds of (n+1)), R32 represents an alkylene group having 2 to 6 carbon atoms, and s represents an integer of 0 to 3,
• Y3 represents a single bond, an alkylene group having 1 to 3 carbon atoms, or an alkylidene group having 1 to 3 carbon atoms, and
• n represents an integer of 1 when Y2 is one of (y2-1) to (y2-5), (y2-7) and (y2-8), or an integer of 2 or 3 when Y2 is one of (y2-6) or (y2-9).