Patent ID: 11919834
Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 8:
9. The method of claim 8, wherein G″ is a hydrogen, and Step (c) comprises at least one step selected from the group consisting of:
a step (C-1) of electrophilic aromatic substitution, wherein said hydrogen G″ atom of a compound of formula (IV) is reacted with an electrophile selected from the group consisting of:
(i) a X—R′hyc reactant, wherein X is Cl or Br, bound to a sp3-hybridized carbon of R′hyc group, and R′hyc being a C1-C18 optionally substituted hydrocarbon group including said sp3-hybridized carbon, which optionally comprise one or more of groups of formula: —(CH2)m—, with m being an integer of 1 to 3; —C(O)—, —C(CH3)2—, or —SO2—, and which optionally comprise one or more aromatic groups;
(ii) a X—C(O)—R″hyc reactant, wherein X is Cl or Br, and R″hyc being a C1-C18 optionally substituted hydrocarbon group, which optionally comprise one or more of groups of formula: —(CH2)m—, with m being an integer of 1 to 3; —C(O)—, —C(CH3)2—, or —SO2—, and which optionally comprise one or more aromatic groups;
(iii) a X—SO2—R*hyc reactant, wherein X is Cl or Br, and R*hyc being a C1-C18 optionally substituted hydrocarbon group, which optionally comprise one or more of groups of formula: —(CH2)m—, with m being an integer of 1 to 3; —C(O)—, —C(CH3)2—, or —SO2—, and which optionally comprise one or more aromatic groups;
a step (C-2) of sulfonation of a compound of formula (IV), which would lead to compounds of formula (I) having groups G and G′ of formula —SO2Y′;
a step (C-3) of nitration optionally followed by a step of reduction to lead to compounds of formula (I) having G and G′ of formula —NRH1RH2.