作者:Kunio Mochida、Katsuhiko Hirakue、Kaoru Suzuki
DOI:10.1246/bcsj.76.1023
日期:2003.5
with various alkynes in the presence of palladium complexes at 120 °C to afford 1,2,3,4-tetrahydro-1,2,3,4-tetragermins, Δ4-1,2,3-trigemolene, and 1H-germoles, depending on the kind of alkyne and the palladium complex employed. Terminal alkynes are more reactive than internal ones. Pd(dba)2-ETBP and Pd(acac)2-ETBP systems were found to serve as efficient catalysts. The mechanism of alkyne insertion reactions
在钯配合物的存在下,1,1,2,2,3,3,4,4-八异丙基四锗烷 (iPr2Ge)4 与各种炔烃在 120 °C 下反应,得到 1,2,3,4-四氢-1,2 ,3,4-tetragermins、Δ4-1,2,3-trigemolene 和 1H-germoles,取决于所用炔烃和钯配合物的种类。末端炔烃比内部炔烃更具反应性。发现 Pd(dba)2-ETBP 和 Pd(acac)2-ETBP 系统可用作有效的催化剂。讨论了炔插入反应进入 (iPr2Ge)4 的锗-锗键的机理。