| abstract |
A sulfonium salt which is highly sensitive to i-line. The sulfonium salt is represented by formula (1). [In formula (1), R 1 to R 6 each independently represents an alkyl, hydroxy, an alkoxy, an alkylcarbonyl, an arylcarbonyl, an alkoxycarbonyl, an aryloxycarbonyl, an arylthiocarbonyl, an acyloxy, an arylthio, an alkylthio, an aryl, a heterocyclic hydrocarbon group, an aryloxy, an alkylsulfinyl, an arylsulfinyl, an alkylsulfonyl, an arylsulfonyl, a hydroxy(poly)alkyleneoxy, optionally substituted amino, cyano, nitro, or a halogen atom; m 1 to m 6 respectively indicate the number of R 1 s to the number of R 6 s; m 1 , m 4 , and m 6 each is an integer of 0-5; m 2 , m 3 , and m 5 each is an integer of 0-4; and X - represents a monovalent polyatomic anion.] |