| 摘要 |
Certain substituted benzothiazoles having in their 2-position a perfluoroalkyl, perfluoroaryl, perfluoro(alkoxyalkyl) perfluoro(aryloxyalkyl) or a polyoxyperfluoroalkylene substituent free of either olefinic or acetylenic unsaturation are very stable to high temperatures and are useful as turbine fluids, hydraulic fluids, lubricants, solvents and heat-transfer fluids. These new compounds can be made by a reaction of o-aminothiophenols or with a perfluoroacid fluoride, followed by cyclization.
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