Ru (II)-and Pt (II)-Catalyzed Cycloisomerization of ω-Aryl-1-alkynes. Generation of Carbocationic Species from Alkynes and Transition Metal Halides and Its …

N Chatani, H Inoue, T Ikeda…

文献索引：Chatani, Naoto; Inoue, Hiroki; Ikeda, Tsutomu; Murai, Shinji Journal of Organic Chemistry, 2000 , vol. 65, # 16 p. 4913 - 4918

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被引用次数: 120

摘要

The treatment of aryl-1-alkynes, such as 4-aryl-1-butyne, 5-aryl-1-pentyne, and 6-aryl-1- hexyne, with catalytic amounts of transition metal chlorides, such as PtCl2 and [RuCl2 (CO) 3] 2, at 80° C in toluene results in cycloisomerization to give dihydronaphthalenes or dihydrobenzocycloheptenes, in which the cyclization mode is dependent on the length of the tethers. The reaction is limited to substrates containing terminal alkynes. A key step of the ...