Abstract
| - α-Tosyloxyketones and α-tosyloxyaldehydes weredirectly prepared from alcohols by treatment with iodosylbenzene and p-toluenesulfonic acid monohydrate in goodyields. This method can be used for the direct preparationof thiazoles, imidazoles, and imidazo[1,2-a]pyridines fromalcohols in good to moderate yields by the successivetreatment with iodosylbenzene and p-toluenesulfonic acidmonohydrate, followed by thioamides, benzamidine, and2-aminopyridine, respectively.
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