| 摘要 |
Thiazolium salts (I) are new. Thiazolium salts of formula (I) are new, excluding: 2-bromo-3-ethyl-4-methylthiazolium tetrafluoroborate, 2-bromo-3-ethyl-4-methylthiazolium hexachloroantimonate, 2-chloro-3-ethyl-4-methylthiazolium tetrafluoroborate, 2-chloro-3-ethyl-4-methylthiazolium hexachloroantimonate, 2-bromo-3-methyl-4-phenylthiazolium tetrafluoroborate, 2-chloro-3-ethyl-4,5-dimethylthiazolium tetrafluoroborate and 2-chloro-3,4-dimethylthiazolium tetrafluoroborate. R<1> = 1-3C alkyl, OH, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, p-methylphenylsulfonyl, or benzyl (optionally substituted by halo, nitro, 1-4C alkyl or 1-4C alkoxy); R<2> = 1-4C alkyl, OH, methylsulfonyl, ethylsulfonyl, phenylsulfonyl, p-methylphenylsulfonyl, phenyl (optionally substituted by halo, nitro, 1-4C alkyl, 1-4C haloalkyl, 1-4C alkylsulfonyl, 1-4C alkoxy, 1-4C haloalkoxy, 1-4C alkoxycarbonyl, 1-4C haloalkoxycarbonyl or 1-4C alkylcarbonyloxy or 1-4C haloalkylcarbonyloxy), benzyl (optionally substituted by halo, nitro, 1-4C alkyl or 1-4C alkoxy) or pyrrolyl, thienyl, naphthyl or benzothiophenyl (all optionally substituted by halo or 1-4C alkyl or 1-4C haloalkyl); R<3> = H, Me or Et, or R<2> + R<3> = (CH2)n (optionally substituted by halo, nitro, carboxy, carbonyl, 1-4C alkyl, 1-4C haloalkyl, 1-4C alkoxy or 1-4C haloalkoxy) or a group of formula (i)-(iii) (optionally substituted by halo, nitro, 1-4C alkyl, 1-4C haloalkyl, 1-4C alkoxy or 1-4C haloalkoxy); n = 3-5; R<4> = Br or Cl; X<-> = chloride, bromide, iodide, hydrogensulfate, half equivalent of sulfate, hexachloroantimonate, methanesulfonate, trifluoromethanesulfonate, p-toluenesulfonate, tetrafluoroborate, tetraphenylborate or hexafluorophosphate. Independent claims are included for the following: (1) preparation of (I); (2) new compounds of formula (IIa), and (3) preparation of compounds of formula (II). q = 1 or 2. |
