The first simple preparation of 2-benzotelluropyrylium salts 4 from o-ethynylbenzyl bromides 1 in two steps, and the characteristic reaction of these salts 4 with benzylmagnesium bromide and other Grignard reagents are described.
H. Sashida and K. Ohyanagi, J. Chem. Soc., Perkin Trans. 1, 1998, 2123 DOI: 10.1039/A804036B
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