Desilylation of 3-(trimethylsilylmethyl)thiazolium triflates including 2-methyl derivatives with CsF generates the corresponding thiazolium methylides which are trapped with acetylenic and olefinic dipolarophiles. This paper presents the first example for the generation of nonstabilized thiazolium methylides including 2-methyl derivatives.
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Tsuge et al. (1985) studied this question.
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