Compound containing mesogenic group, and mixture, composition, and optically anisotropic body using said compound

1. A compound comprising a group selected from the group consisting of an acryloyl group and a methacryloyl group; and a mesogenic group,

wherein a content of a silicon compound in the compound is 1 ppm % by weight or more to 1,000 ppm % by weight or less, and

the compound is represented by general formula (1);

P-(Sp) m -MG-R 1   (1)

wherein in the general formula (1) P represents a polymerizable functional group,

Sp represents an alkylene group having 0 to 18 carbon atoms, wherein the alkylene group may be substituted with one or more halogen atoms or CN, and one CH 2 group or two or more CH 2 groups not adjacent to each other, which are present in the alkylene group, each independently may be substituted with —O—, —S—, —NH—, —N(CH 3 )—, —CO—, —COO—, —OCO—, —OCOO—, —SCO—, —COS—, or —C≡C— as long as oxygen atoms are not directly bonded to each other,

m represents 1,

MG represents the mesogenic group represented by General Formula (1 -b);

-Z0-(A1-Z1) n -A2-Z2-A3-Z3-  (1-b);

in the general formula (1-b), A1, A2, and A3 each independently represent a 1,4-phenylene group, a 1,4-cyclohexylene group, a 1,4-cyclohexenyl group, a tetrahydropyran-2,5-diyl group, a 1,3-dioxane-2,5-diylgroup, a tetrahydrothiopyran-2,5-diyl group, a 1,4-bicyclo(2,2,2)octylene group, a decahydronaphthalene-2,6-diyl group, a pyridine-2,5-diyl group, a pyrimidine-2,5-diyl group, a pyrazine-2,5-diyl group, a thiophene-2,5-diyl group-, a 1,2,3,4-tetrahydronaphthalene-2,6-diyl group, a 2,6-naphthylene group, a phenanthrene-2,7-diyl group, a 9,10-dihydrophenanthrene-2,7-diyl group, a 1,2,3,4,4a,9,10a-octahydrophenanthrene-2,7-diylgroup, a 1,4-naphthylene group, a benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl group, a benzo[1,2-b:4,5-b′]diselenophene-2,6-diyl group, a [1]benzothieno[3,2-b]thiophene-2,7-diyl group, a [1]benzoselenopheno[3,2-b]selenophene-2,7-diyl group, or a fluorene-2,7-diyl group, and may have, as a substituent, one or more F's, Cl's, CF 3 's, OCF 3 's, CN groups, alkyl groups having 1 to 8 carbon atoms, alkoxy groups, alkanoyl groups, alkanoyloxy groups, alkenyl groups having 2 to 8 carbon atoms, alkenyloxy groups, alkenoyl groups, alkenoyloxy groups, or General Formula (1-c):

A n Sp m P  (1-c)

wherein in the general formula (1-c), P represents a reactive functional group, A represents —O—, —COO—, —OCO—, —OCH 2 —, —CH 2 O—, —CH 2 CH 2 OCO—, —COOCH 2 CH 2 —, —OCOCH 2 CH 2 —, or a single bond, Sp represents a spacer group having 0 to 18 carbon atoms, n represents 0 or 1, and m represents 0 or 1,

in the general formula (1-b), Z0, Z1, Z2, and Z3 each independently represent —COO—, —OCO—, —CH 2 CH 2 —, —OCH 2 —, —CH 2 O—, —CH═CH—, —C≡C—, —CH═CHCOO—, —CF═CF—, —CF 2 O—, —OCOCH═CH—, —CH 2 CH 2 COO—, —CH 2 CH 2 OCO—, —COOCH 2 CH 2 —, —CONH—, —NHCO—, an alkyl group which may have a halogen atom having 2 to 10 carbon atoms, or a single bond, and

n represents 0, or 1, and

in the general formula (1) R 1 represents general formula (1-a);

-(Sp) m -P  (1 -a)

in the general formula (1-a) P represents a reactive functional group, Sp represents a spacer group having 1 to 18 carbon atoms, and m represents 1,

wherein the polymerizable functional group P of general formula (1), the reactive functional group P of general formula (1-c) and the reactive functional group P of general formula (1-a) are each independently selected from a group consisting of an acryloyl group and a methacryloyl group.

2. A mixture comprising at least two compounds according to claim 1 .

3. A mixture comprising the compound according to claim 1 .

4. A composition according to claim 3 comprising the mixture dissolved in an organic solvent.

5. A polymer obtained by polymerizing the composition according to claim 4 .

6. An optically anisotropic body obtained by polymerizing the composition according to claim 4 .

7. A phase difference film obtained by polymerizing the composition according to claim 4 .

8. A polymer obtained by polymerizing the mixture according to claim 3 .

9. An optically anisotropic body obtained by polymerizing the mixture according to claim 3 .

10. A phase difference film obtained by polymerizing the mixture according to claim 3 .

11. A polymerizable composition comprising the mixture according to claim 3 dissolved in an organic solvent.