Silyl compound 1 reacts with iodobenzene diacetate in the presence of trifluoromethanesulfonic acid to give hypervalent iodine compound 2. Treatment of compound 2 with tetrabutylammonium fluoride at room temperature generates benzyne 3, which in turn give several types of cyclic compounds in the presence of a trapping agent such as furan.1) Since the generation of 3 from 1 is carried out under mild conditions, this methodology can be utilized in various fields.
The reaction of 1 with 1,2-bis(trichlorotelluro)benzene can also provide telluranthene 4.2)
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