Tetrahedron

Commercially available liquid enol ethers and acetates as gaseous alkyne equivalents in cationic Rh (I)/BINAP-catalyzed chemo-and regioselective formal cross- …

H Hara, M Hirano, K Tanaka

文献索引：Hara, Hiromi; Hirano, Masao; Tanaka, Ken Tetrahedron, 2009 , vol. 65, # 26 p. 5093 - 5101

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被引用次数: 11

摘要

A cationic rhodium (I)/BINAP complex catalyzes partial intramolecular [2+ 2+ 2] cycloadditions of 1, 6-and 1, 7-diynes with enol ethers or a ketene acetal giving substituted benzenes in good yields. The same catalyst also catalyzes complete intermolecular [2+ 2+ 2] cycloadditions of two different monoynes with enol acetates giving tri-and tetrasubstituted benzenes in good yields with complete regioselectivity. Commercially available liquid ...