Reactivite de complexes σ-yne-ols tertiaires benzyliques. cyclisations et preuves indirectes pour la formation de complexes π-cumuleniques
作者:J. Benaim、F. Giulieri
DOI:10.1016/s0022-328x(00)81391-1
日期:1980.12
new cyclised η1-1,5-dihydrofuran complexes has been observed with molybdenum compounds. When protonated at low temperature, the iron compounds yield isolable but thermally unstable cationic complexes. Strong evidences for a π-cumulene structure of these complexes are given from their reactions with nucleophiles: methoxide ion yields different products by alkoxycarbonylation reactions at the C(2) or