Deoxygenative Cycloaddition of Aldehydes with Alkynes Mediated by AlCl(3) and Zirconium: Formation of Cyclopentadiene Derivatives Financial support from the National Natural Science Foundation of China (29702001), the National Science Fund for Distinguished Scholars (29825105), and the Peking University President Fund are gratefully acknowledged. Yunhai Xiao carried out some experimental work.
Xi
Z
Department of Chemistry, Peking University Beijing 100871 (China).
Li
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