Patent ID: 11958802
Assignee: KAWASAKI KASEI CHEMICALS LTD.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. A method for producing the compound of formula (1) of claim 1, the method comprising:
reducing a 9,10-anthraquinone compound of formula (9):, , wherein X and Y are independently a hydrogen atom, a C1-8 alkyl group, or a halogen atom, to obtain a 9,10-dihydroxyanthracene compound of formula (2):, , and
reacting the compound of formula (2): and an ester compound of formula (3):, wherein A is a C1-20 alkylene group, which is optionally branched by an alkyl group, R is a C1-20 alkyl group, which is optionally branched by the alkyl group, optionally as a cycloalkyl group or a cycloalkylalkyl group, the C1-20 alkyl group, alkyl group, cycloalkyl group, or cycloalkylalkyl group being optionally substituted by a hydroxy group, and one or more of carbon atoms of the C1-20 alkyl group, alkyl group, cycloalkyl group, or cycloalkylalkyl group being optionally replaced by a non-peroxide oxygen atom, and Z is Cl, Br, or I.