7-(Dimethylamino)tricyclo[5.2.2.0<sup>1,6</sup>]undecene Derivatives from β-Cyclohexenyl β-Dimethylamino-Substituted α,β-Unsaturated Fischer Carbenes
作者:Yao-Ting Wu、Thomas Labahn、Attila Demeter、Klaas A. Zachariasse、Armin de Meijere
DOI:10.1002/ejoc.200400471
日期:2004.11
respectively, with high regio- and diastereoselectivity in 15−91% yields. The enol ether moiety in compound 3 is particularly easily hydrolyzed, probably due to the through-space interaction between the two double bond moieties, so that the norbornenone derivatives 4 are isolated in all but one case after chromatographic purification. In this reaction, the tungstencomplex 1-W consistently gave lower