反应条件
1: With n-butyllithium; N,N,N'-trimethyl-ethylenediamine in tetrahydrofuran 2: With 1,2-dibromo-1,1,2,2-tetrachloroethane in tetrahydrofuran Further stages. Title compound not separated from byproducts.;
参考文献
Organic and Biomolecular Chemistry, , vol. 5, # 1 p. 143 - 150