期刊
HETEROCYCLES
卷 90, 期 1, 页码 681-689出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.3987/COM-14-S(K)34
关键词
Heteroaromatic Aryne; Hypervalent Iodine; Didehydrobenzotriazole; Didehydroindazole; Polycyclic Heteroaromatic Compound
The heterocyclic aryne precursors, (phenyl)[1-phenyl-6-(trimethylsilyl)benzotriazol-5-yl] iodonium triflate and [3-ethoxycarbonyl-6-(trimethylsilyl)indazol-5-yl](phenyl)iodonium triflate, were prepared from the cycloadducts of 4,5-bis(trimethylsilyl)benzyne generated from (phenyl)[2,4,5-tris(trimethylsilyl)phenyl]iodonium triflate. These precursors provide the corresponding arynes, 1-phenyl-5,6-didehydrobenzotriazole and 3-ethoxycarbony1-5,6-didehydroindazole, to give the corresponding polycyclic heteroaromatic compounds in good to high yields.
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