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

Claim 5:
6. The A salt according to claim 1, represented by formula (I):, wherein, in formula (I),
R1, R2 and R3 each independently represent a hydroxy group, —O—R10, —O—CO—O—R10, —O—L1—CO—O—R10,
R1, R5, R6, R7, R8 and R9 each 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 is 0 or 1,
m2 and m3 are 1 and more,
at least one of the bonding sites of X2 is m-position or p-position with respect to a bonding site of S+,
at least one of the bonding sites of X3 is m-position or p-position with respect to a bonding site of S+,
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—, and
AI represents an organic anion.