Diols, α-Ketols, and Diones as 22π Components in [2 2 2] Cycloadditions of 1,6-Diynes via Ruthenium(0)-Catalyzed Transfer Hydrogenation - Journal of the American Chemical Society (ACS Publications)

Diols, α-Ketols, and Diones as 22π Components in [2 2 2] Cycloadditions of 1,6-Diynes via Ruthenium(0)-Catalyzed Transfer Hydrogenation - Journal of the American Chemical Society (ACS Publications)
The first use of vicinal diols, ketols, or diones as 2 components in metal-catalyzed [2+2+2] cycloaddition is described. Using ruthenium(0) catalysts, 1,6-diynes form ruthenacyclopentadienes that engage transient diones in successive carbonyl addition. 

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