Resolution-free route to chiral 2,2^′-bis(pyridin-2-yl)-1,1^′-binaphthyl ligand: photochemical CpCo(CO)₂-mediated cycloaddition of enantiopure 2,2^&prime

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• 作者：Hoshi ; Takashi ; Katano ; Masayoshi ; Nozawa ; Eiji ; Suzuki ; Toshio ; Hagiwara ; Hisahiro
• 刊名：Tetrahedron Letters
• 出版年：2004
• 出版时间：April 19, 2004
• 年：2004
• 卷：45
• 期：17
• 页码：3489-3491
• 全文大小：256 K

文摘

A resolution-free route to chiral 2,2^′-bis(pyridin-2-yl)-1,1^′-binaphthyl ligands 2 was developed for the first time based on the photochemical CpCo(CO)₂-mediated cycloaddition reaction of enantiopure 2,2^′-dicyano-1,1^′-binaphthyl 3 with 1,6-heptadiyne, 1,7-octadiyne, 1,8-nonadiyne, and 2,8-decadiyne.