Patent ID: 11899363
Assignee: SUMITOMO CHEMICAL COMPANY LIMITED
Field: Organic fine chemistry (Chemistry)
Classification: CPC G  C | IPC C  G

Claim 0:
1. A salt represented by formula (I):, wherein, in formula (I),
R1, R2 and R3 each independently represent —O—R10, —O—CO—O—R10, —O—L1—CO—O—R10, R4, R5, R6, R7, R8 and R9each independently represent a halogen atom, a hydroxy group, an alkyl fluoride group having 1 to 12 carbon atoms or a hydrocarbon group having 1 to 18 carbon atoms, the hydrocarbon group may have a substituent, and —CH2— included in the hydrocarbon group may be replaced by —O—, —CO—, —S— or —SO2—,
L1 represents an alkanediyl group having 1 to 6 carbon atoms,
R10 represents an acid-labile group,
X1, X2 and X3 each independently represent an oxygen atom or a sulfur atom,
m1 represents an integer of 0 to 5, and when m1 is 2 or more, a plurality of groups in parentheses may be the same or different from each other,
m2 represents an integer of 0 to 4, and when m2 is 2 or more, a plurality of groups in parentheses may be the same or different from each other,
m3 represents an integer of 0 to 4, and when m3 is 2 or more, a plurality of groups in parentheses may be the same or different from each other,
m4 represents an integer of 0 to 4, and when m4 is 2 or more, a plurality of R4 may be the same or different from each other,
m5 represents an integer of 0 to 4, and when m5 is 2 or more, a plurality of R5 may be the same or different from each other,
m6 represents an integer of 0 to 4, and when m6 is 2 or more, a plurality of R6 may be the same or different from each other,
m7 represents an integer of 0 to 5, and when m7 is 2 or more, a plurality of R7 may be the same or different from each other,
m8 represents an integer of 0 to 4, and when m8 is 2 or more, a plurality of R8 may be the same or different from each other,
m9 represents an integer of 0 to 4, and when m9 is 2 or more, a plurality of R9 may be the same or different from each other,
in which 0≤m1+m7≤5, 0≤m2+m8≤4, 0≤m3+m9≤4, and at least one of m1, m2 and m3 represents an integer of 1 or more,
X4 represents a single bond, —CH2—, —O—, —S—, —CO—, —SO— or —SO2—,
AI represents an organic anion,
wherein the acid-labile group as for R10 is a group represented by formula (1a) or a group represented by formula (2a):, wherein, in formula (1a), Raa1, Raa2, and Raa3 each independently represent an alkyl group having 1 to 8 carbon atoms which may have a substituent, an alkenyl group having 2 to 8 carbon atoms which may have a substituent, an alicyclic hydrocarbon group having 3 to 20 carbon atoms which may have a substituent, or an aromatic hydrocarbon group having 6 to 18 carbon atoms which may have a substituent, or Raa1 and Raa2 are bonded to each other to form an alicyclic hydrocarbon group having 3 to 20 carbon atoms together with carbon atoms to which Raa1 and Raa2 are bonded, and
represents a bond;, wherein, in formula (2a), Raa1 and Raa2 each independently represent a hydrogen atom or a hydrocarbon group having 1 to 12 carbon atoms, Raa3 represents a hydrocarbon group having 1 to 20 carbon atoms, or Raa2 and Raa3 are bonded to each other to form a heterocyclic group having 3 to 20 carbon atoms together with —C—Xa— to which Raa2 and Raa3 are bonded, and —CH2— included in the hydrocarbon group and the heterocyclic group may be replaced by —O— or —S—,
Xa represents an oxygen atom or a sulfur atom, and
represents a bond.