Chemistry Letters p. 1665 - 1668 (1991)
Update date:2022-08-11
Topics:
Takaki, Ken
Nagase, Kyoko
Beppu, Fumikazu
Fujiwara, Yuzo
The trichlorolanthanoid (LnCl3)/Zn system has been found to cause cyclodimerization of chalcone to give cyclopentanol derivatives (1 and 2) in both high yields and selectivities (1/2 ratio) compared with the reaction by Yb metal alone.Of trichlorolanthanoids the chlorides of Yb and Eu or Sm showed maximum yields and selectivities (1/2).
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