Polylithiumorganic Compounds. Part 27: C,C-Bond Forming Reactions of 3,4-Dilithio-2,5-dimethyl-2,4-hexadiene
作者:Adalbert Maercker、Joachim van de Flierdt、Ulrich Girreser
DOI:10.1016/s0040-4020(00)00229-5
日期:2000.5
The reaction of the title compound 3,4-dilithio-2,5-dimethyl-2,4-hexadiene (4) with various mono- and bifunctional carbon-centered electrophiles is investigated, with special emphasis on carbonyl and carbonic acid derivatives. Depending on the nature of the electrophile, mono- and disubstituted derivatives with either butadiene, allene, or alkyne skeleton are obtained. Ring forming reactions in the