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## Oxime Sulfonate 

A further embodiment of the invention is an oxime sul› fonate compound having the general formula (3b ). 

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Herein RO is hydroxyl or a substituted or unsubstituted, straight, branched or cyclic C$_{1 }$-C$_{20 }$organoxy group; R $^{1 }$is a divalent C$_{1 }$-C$_{20 }$aliphatic group which may contain a substitu› ent group having a heteroatom such as oxygen, nitrogen or sulfur, or may form a mono- or polycyclic structure with RO; q is O (zero) or 1; when q is 0, pis a substituted or unsubsti› tuted C$_{1 }$-C$_{20 }$ alkyl group or a substituted or unsubstituted CcC$_{15 }$ aryl group; when q is 1, pis a single bond, a substi› tuted or unsubstituted C$_{1 }$-C$_{20 }$alkylene group or a substituted or unsubstituted CcC$_{15 }$ arylene group; EWG is a cyano, trifluoromethyl, perfluoroethyl, perfluoropropyl, 5H-perfluo› ropentyl, 6H-perfluorohexyl, nitro or methyl group, and when q is 1, two EWG’s may bond together to form a ring of 6 carbon atoms with the carbon atoms to which they are attached. 

In formula (3b ), RO and R $^{1 }$are as defined above. When q is equal to 0, p is a substituted or unsubstituted C$_{1 }$-C$_{20 }$ alkyl group or a substituted or unsubstituted C$_{6}$-C$_{15 }$ aryl group. When q is equal to 1, p is a single bond, a substituted or unsubstituted C$_{1 }$-C$_{20 }$ alkylene group or a substituted or unsubstituted CcC$_{15 }$ arylene group. EWG is a cyano, trifluo› romethyl, perfluoroethyl, perfluoropropyl, 5H-perfluoropen› tyl, 6H-perfluorohexyl, nitro or methyl group. When q is equal to 1, two EWG’s may bond together to form a ring of 6 carbon atoms with the carbon atoms to which they are attached. The skeletons of the oxime sulfonates are described in U.S. Pat. No. 6,261,738, JP-A 9-95479, JP-A 9-208554, JP-A 9-230588, JP 2,906,999, JP-A 9-301948, JP-A 2000- 314956, JP-A 2001-233842, and WO 2004/074242. 

Exemplary skeletons of oxime sulfonates excluding the sulfonate moiety are given below wherein the broken line denotes a bonding site to the sulfonate moiety. 

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-continued 

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