Synthesis of cyclopropyl-iron σ complexes by decarbonylation of acyl complexes
作者:Frank J. Manganiello、Larry W. Christensen、W.M. Jones
DOI:10.1016/s0022-328x(00)96086-8
日期:1982.9
Contrary to earlier reports [1,2] cyclopropyliron σ complexes can be conveniently prepared in fair to excellent yields by photodecarbonylation of the corresponding acylcomplexes.
Rearrangements of 1-cyclohexenylmethylenes and their relevance to the mechanism of the phenylcarbene rearrangement
作者:Paula C. Miller、Peter P. Gaspar
DOI:10.1021/jo00017a021
日期:1991.8
Gas-phase pyrolysis of 1-cyclohexenyldiazomethane (17) and (2-methyl-1-cyclohexenyl)diazomethane (36) leads to the generation of cyclohexenylmethylenes, 13 and 27, respectively, whose intramolecular rearrangement mechanisms can be inferred from the stable end products. These substituted vinylmethylenes undergo intramolecular pi-addition, but apparently do not participate in an all-carbon Wolff rearrangement. The relevance of these results to the mechanism of the phenylcarbene rearrangement is discussed, and it is suggested that a pi-route with a bicycloheptatriene-like transition state may operate. An attempt to generate 1,3-cyclohexadienylmethylene is described.
MANGANIELLO, F. J.;CHRISTENSEN, L. W.;JONES, W. M., J. ORGANOMET. CHEM., 1982, 235, N 3, 327-334
作者:MANGANIELLO, F. J.、CHRISTENSEN, L. W.、JONES, W. M.