Project supported by the National Natural Science Foundation of China (No. 20672059).
The reactions of the mixture of 1- and 2-[2,2-bis(3,5-dimethylpyrazol-l-yl)-1-phenylethyl]-1,3-cyclopentadiene (bpzpcpH) and mixture of 1- and 2-[2,2-bis(3,5-dimethylpyrazol-l-yl)-I,l-diphenylethyl]-l,3-cyclopen...
theNationalNaturalScienceFoundationofChina (No .2 0 0 72 0 33)andtheSpecializedResearchFundfortheDoctoralProgramofHigherEducation
Promoted by samarium diiodide in THF, the α,β-unsaturated alkynones were reduced to afford intermolecular reductive coupling products. The multiply substituted cyclopentadienes were prepared conveniently in good yie...