Dialkenylation of Carbonyl Groups by Alkenyllithium Compounds: Formation of Cyclopentadiene Derivatives by the Reaction of 1,4-Dilithio-1,3-dienes with Ketones and Aldehydes This work was partially supported by the National Science Fund for Distinguished Young Scholars (29825105), the Major State Basic Research Development Program (G2000077502-D), and the National Natural Science Foundation of China. The Qiu Shi Science & Technologies Foundation is gratefully acknowledged

Angew Chem Int Ed Engl. 2001 May 18;40(10):1913-1916.
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