CPC C07D 233/60 (2013.01) [C07D 233/58 (2013.01)] | 4 Claims |
1. A compound represented by the following formula (1):
wherein Xm+ represents an m-valent counter cation; R1 represents an optionally substituted aromatic group; R2 represents an optionally substituted alkylene group; R3 represents a halogen atom, a hydroxyl group, a mercapto group, a sulfide group, a silyl group, a silanol group, a nitro group, a nitroso group, a sulfonate group, a phosphino group, a phosphinyl group, a phosphonate group, or an organic group; m is an integer of 1 or more; n is an integer of 0 or more and 3 or less; and R2 may be bonded to R1 to form a cyclic structure
wherein the m-valent counter cation Xm+ is acyclic or cyclic nitrogen-containing aliphatic cation, or a nitrogen-containing aromatic cation, and
wherein the acyclic nitrogen-containing aliphatic cation is selected from the group consisting of the following three cations:
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