Reactions of Coordinated cyclic polyolefins. The synthesis and cycloaddition reactions of tricarbonyl[(1,2,3,4-η)-3,7,7-trimethylcycloheptatriene]iron
作者:Zeev Goldschmidt、Shlomo Antebi
DOI:10.1016/0022-328x(83)85162-6
日期:1983.12
regiospecificity of the reactions is considered in terms of frontier molecular orbitals. Complex III reacts with tetracyanoethylene to form a mixture of 1,3- and 1,6-cycloadducts in 4/1 ratio. Diphenylketene (DPK) forms a 2 + 2 adduct with III at room temperature. At 80°C an acylated addition product is obtained. In general, steric hindrance increases the yield of products formed via bipolar reactions at the expense