Dendritic Photoactive Compound Comprising Oxime Ester And Method For Preparing The Same

A method for producing a dendritic photoactive compound comprising oxime ester, the method comprising the steps of:

• 1) reacting ketone that is substituted with aldehyde and methyl under the presence of the base to produce the compound that is represented by the following Formula 1c or Formula 1d;
• 2) adding NH2OH.HCl and a sodium salt of a carboxylic acid to the compound that is produced in the step 1) to produce the compound that is represented by the following Formula 1e or Formula 1f;
• and
• 3) adding R1-C(O)—Cl, R2-C(O)—Cl, R3-C(O)—Cl and the base to the compound that is produced in the step 2) to produce the compound that is represented by the following Formula 1a or Formula 1b:
• wherein
• n is 2,
• X is a C2˜C6 alkylene group;
• phenylene, biphenylene, bisphenylene, styrylene, or naphthylene that is unsubstituted or substituted with one or more groups selected from the group consisting of halogen, CN, a C1˜C6 alkyl group, a C1˜C6 alkoxy group, a C1˜C6 alkylthio group, and a morpholino group;
• a C5˜C20 arylene group that is unsubstituted or substituted with one or more groups selected from the group consisting of halogen, CN, a C1˜C6 alkyl group, a C1˜C6 alkoxy group, a C1˜C6 alkylthio group, and a morpholino group;
• or a C4˜C20 divalent heterocyclic group that is unsubstituted or substituted with one or more groups selected from the group consisting of halogen, CN, a C1˜C6 alkyl group, a C1˜C6 alkoxy group, a C1˜C6 alkylthio group, and a morpholino group and comprises O, N or S;
• or is selected from the group consisting of the following Structural Formulae (* is a connection portion),
• Y is selected from the group consisting of a C1˜C6 alkyl group;
• a phenyl group that is unsubstituted or substituted with one or more groups selected from the group consisting of halogen, CN, a C1˜C6 alkyl group, a C1˜C6 alkoxy group, a C1˜C6 alkylthio group, and a morpholino group;
• a C5˜C20 aryl group that is unsubstituted or substituted with one or more groups selected from the group consisting of halogen, CN, a C1˜C6 alkyl group, a C1˜C6 alkoxy group, a C1˜C6 alkylthio group, and a morpholino group;
• and a C4˜C20 heterocyclic group that is unsubstituted or substituted with one or more groups selected from the group consisting of halogen, CN, a C1˜C6 alkyl group, a C1˜C6 alkoxy group, a C1˜C6 alkylthio group, and a morpholino group and comprises O, N or S, and R1, R2, and R3 are each independently selected from the group consisting of a C1˜C6 alkyl group, nitrile group and phenyl group.