Patent ID: 11939410
Assignee: APEIRON SYNTHESIS S.A.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The compound according to claim 1, wherein:
Y is oxygen;
R1 is hydrogen;
R2, R3, R4 and R5 are the same or different and each independently selected from the group consisting of hydrogen, methyl, ethyl and —NO2;
L2 is a ligand of the formula 3a or 3b:, wherein:
R10 and R11 are the same or different and each independently selected from the group consisting of (C1-C12)alkyl, (C3-C12)cycloalkyl, (C2-C12)alkenyl and substituted or unsubstituted (C6-C14)aryl;
R12 R13, R14 and R15 are the same or different and each independently selected from the group consisting of hydrogen, (C1-C12)alkyl, (C3-C12)cycloalkyl, (C2-C12)alkenyl, (C6-C14)aryl, optionally substituted with at least one of (C1-C6)alkyl, (C1-C6)perhaloalkyl, (C1-C6)alkoxy or halogen; or
R12, R13, R14, R15 may optionally join together with the carbon atoms to which they are attached to form a substituted or unsubstituted, fused (C4-C8)carbocyclic ring, or a substituted or unsubstituted, fused aromatic ring.