Stabilizer compound, liquid crystal composition, and display element

A compound represented by General Formula (I):

• wherein R1 represents a hydrogen atom, a hydroxyl group, or an alkyl group having 1 to 20 carbon atoms;
• one —CH2-or two or more non-adjacent (—CH2—)'s present in the alkyl group, except for —CH2— directly bonded to a nitrogen atom adjacent to R1, may each independently be substituted with —O—, —S—, —CO—, —CO—O—, —O—CO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —C≡C—, —Si(CH3)2—, a trans 1,4-cyclohexylene group, a 1,4-phenylene group, or a naphthalene-2,6-diyl group;
• and one or two or more of hydrogen atoms in R1 may each independently be substituted with a fluorine atom, a chlorine atom, or a cyano group,
• R2, R3, R4, and R5 each independently represent an alkyl group having 1 to 8 carbon atoms,
• -G1-G2- is a group represented by:
• (wherein the broken line represents a bond to U in General Formula (I), and R6, R7, and R8 each independently represent a hydrogen atom),
• U represents a group represented by General Formula (U-1):
• (wherein Zu1 represents —CH2O—, —COO— or —CH2—OCO—, Zu2 represents —O—, —S—, —CH2O—, —CH2CH2—, —CO—, —COO—, —CO—S—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —COO—CH2CH2—, —OCO—CH2CH2—, —CH2CH2—COO—, —CH2CH2—OCO—, —COO—CH2—, —OCO—CH2—, —CH2—COO—, —CH2—OCO—, —CH═CH—, —N═N—, —CH═N—N═CH—, —CF═CF—, —C≡C—, or a single bond,
• Au1 represents a group selected from the group consisting of:
• (a) a 1,4-cyclohexylene group (one —CH2— or two or more non-adjacent (—CH2—)'s present in this group may be substituted with —O—);
• (b) a 1,4-phenylene group (one —CH═ or two or more non-adjacent (—CH═)'s present in this group may be substituted with —N═);
• (c) a naphthalene-2,6-diyl group, a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, or a decahydronaphthalene-2,6-diyl group (one —CH═ or two or more non-adjacent —CH═ present in the naphthalene-2,6-diyl group or the 1,2,3,4-tetrahydronaphthalene-2,6-diyl group may be substituted with —N═);
• and
• the group (a), the group (b), and the group (c) may each independently be substituted with a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a pentafluorosulfuranyl group, a nitro group, a cyano group, an isocyano group, an amino group, a mercapto group, a methylamino group, a dimethylamino group, a diethylamino group, a diisopropylamino group, a trimethylsilyl group, a dimethylsilyl group, a thioisocyano group, or an alkyl group having 1 to 12 carbon atoms, and one —CH2— or two or more non-adjacent (—CH2—)'s present in the alkyl group may each independently be substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—, —CF2O—, or —C≡C—,
• Spu1 represents a single bond or an alkylene group having 1 to 10 carbon atoms;
• and one —CH2— or two or more non-adjacent (—CH2—)'s present in the alkylene group, except for —CH2— directly bonded to Zu1 adjacent to Spu1, may each independently be substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—, —CF2O—, or —C≡C—,
• W represents a monovalent to decavalent organic group;
• provided that the valency of W is the same as a number represented by n in General Formula (I),
• pu1 represents an integer from 0 to 8, and
• nu1 represents an integer of 1 to 4, provided that
• when nu1 represents 1 or 2 and pu1 is 0, Spu1 represents an alkylene group having 2 to 10 carbon atoms in which one or two or more non-adjacent (—CH2—)'s present in the alkylene group, except for —CH2— directly bonded to Zu1 adjacent to Spu1, each independently are substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—, —CF2O—, or —C≡C—, and if any, plural Zu1's may be the same or different;
• plural Zu2's may be the same or different;
• plural Spu1's may be the same or different;
• and plural Au1's may be the same or different),
• m1 and m2 each independently represent an integer of 1, and
• n represents an integer of 1 to 4, provided that
• when n=1;
• W is a hydrogen atom, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a pentafluorosulfuranyl group, a nitro group, an amino group, a hydroxyl group, a mercapto group, or an alkyl group having 1 to 12 carbon atoms, and one —CH2— or two or more non-adjacent (—CH2—)'s present in the alkyl group may each independently be substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—, —CF2O—, or —C≡C—, provided that when W represents a hydrogen atom or an alkyl group, pu1 is an integer of 1 or more,
• when n=2;
• W represents an alkylene group having 1 to 10 carbon atoms, and one —CH2— or two or more non-adjacent (—CH2—)'s present in the alkylene group may each independently be substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—, —CF2O—, or —C≡C—, or
• W represents a group selected from the group consisting of:
• (a) a 1,4-cyclohexylene group (one —CH2— or two or more non-adjacent (—CH2—)'s present in this group may be substituted with —O—),
• (b) a 1,4-phenylene group (one —CH═ or two or more non-adjacent —CH═ present in this group may be substituted with —N═),
• (c) a naphthalene-2,6-diyl group, a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, or a decahydronaphthalene-2,6-diyl group (one —CH═ or two or more non-adjacent —CH═ present in the naphthalene-2,6-diyl group or the 1,2,3,4-tetrahydronaphthalene-2,6-diyl group may be substituted with —N═), and
• the group (a), the group (b), and the group (c) may each independently be substituted with a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a pentafluorosulfuranyl group, a nitro group, a cyano group, an isocyano group, an amino group, a hydroxyl group, a mercapto group, a methylamino group, a dimethylamino group, a diethylamino group, a diisopropylamino group, a trimethylsilyl group, a dimethylsilyl group, a thioisocyano group, or an alkyl group having 1 to 12 carbon atoms, and one —CH2— or two or more non-adjacent (—CH2—)'s present in the alkyl group may each independently be substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—, —CF2O—, or —C≡C—,
• when n=3;
• W is a group selected from the group consisting of (W3-1) to (W3-12):
• wherein Rw31 and Rw32 represent a hydrogen atom, a hydroxyl group, or an alkyl group having 1 to 10 carbon atoms, and one or two or more (—CH2—)'s present in the alkyl group may each independently be substituted with —O—, —S—, —CH═CH—, —C≡C—, —CO—O—, or —O—CO—, and any arbitrary hydrogen atom in a cyclic structure may be substituted with a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, a pentafluorosulfuranyl group, a nitro group, a cyano group, an isocyano group, an amino group, a hydroxyl group, a mercapto group, a methylamino group, a dimethylamino group, a diethylamino group, a diisopropylamino group, a trimethylsilyl group, a dimethylsilyl group, a thioisocyano group, or an alkyl group having 1 to 12 carbon atoms in which one —CH2— or two or more non-adjacent (—CH2—)'s present in the alkyl group may each independently be substituted with —O—, —S—, —CO—, —COO—, —OCO—, —CO—S—, —S—CO—, —O—CO—O—, —CO—NH—, —NH—CO—, —CH═CH—COO—, —CH═CH—OCO—, —COO—CH═CH—, —OCO—CH═CH—, —CH═CH—, —CF═CF—, —OCF2—CF2O—, or —C≡C—, and
• when n=4;
• W is a group selected from the group consisting of (W4-1) to (W4-21):
• provided that, if any, plural R1's are the same or different, plural -G1-G2-'s are the same or different, plural Zu1's are the same or different, plural Zu2's are the same or different, plural Spu1 's are the same or different, plural Au1's are the same or different, and plural nu1's are the same or different.