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
Cationic cycloheptadienyl ironcomplexes with new substitution patterns are generated by starting from the eucarvonecomplex 5 and the analogous triphenyl phosphite complex 6. These complexes are converted with different nucleophiles. Regioselectivity of the nucleophilic attack depends on the substitution pattern of the seven-membered ring. A new type of cationic system 7b, bearing an alkoxy substituent
The title compound, [Fe(C10H14O)(C18H15P)(CO)(2)], is the first crystalline and enantiomerically pure iron complex with eucarvone as an organic ligand. The absolute configuration could be determined as 2S.