A Novel Use of the Anions of Fischer-type Carbene Complexes as Alkenyl Metallic Species
作者:Kohei Fuchibe、Nobuharu Iwasawa
DOI:10.1016/s0040-4020(00)00205-2
日期:2000.7
The anions generated by deprotonation of Fischer-typecarbenecomplexes or by 1,4-addition of lithium enolates to α,β-unsaturated complexes are found to act as alkenyl metallicspecies on iodine oxidation. Various α-methoxy-α,β-unsaturated esters are formed by the treatment of such anions with iodine in the presence of methanol and silver trifluoromethanesulfonate. In addition, alkylcerium reagents