Patent ID: 11891349
Assignee: CMBLU ENERGY AG
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  H  Y | IPC C  H

Claim 4:
5. The low molecular weight aromatic compound of claim 1, wherein the compound corresponds in structure to Formula (1)(a) or (b) and wherein:
(a) R4 is selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S;
(b) R4 is selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S; and optionally substituted amine;
R3 is methoxy;

(c) R4 is selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S; and optionally substituted amine;
R2 and R3 are methoxy;

(d) R1 and R4 are each independently selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S; and optionally substituted amine;
(e) R1 and R4 are each independently selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S; and optionally substituted amine; R3 is methoxy;
(f) R1 and R4 are each independently selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S; and optionally substituted amine;
R2 and R3 are methoxy; or

(g) R2 and R4 are each independently selected from optionally substituted C1-6 alkyl, optionally comprising at least one heteroatom selected from N, O and S; and optionally substituted amine;
R3 is methoxy,
wherein each of the other of R1-R4 is OH or H.