Coupling of Aromatic Aldehydes with CO2Me-Substituted TpMe2Ir(III) Metallacyclopentadienes
AE Roa, V Salazar, J López-Serrano, E Oñate… - …, 2012 - ACS Publications
The fully CO2Me substituted aquo-iridacyclopentadiene 1 reacts with a variety of aromatic
aldehydes, at 90–120° C, with the formation of bicyclic Fischer-type carbenes, generated by
the transfer of the aldehydic H atom to an α carbon of the metallacycle and concomitant
bonding of the O atom to the adjacent β carbon. These carbenes have a thermodynamically
favored anti configuration of these C–H and C–O bonds but it is proposed that an
unobserved syn carbene is the kinetic primary product, which then easily epimerizes by …
aldehydes, at 90–120° C, with the formation of bicyclic Fischer-type carbenes, generated by
the transfer of the aldehydic H atom to an α carbon of the metallacycle and concomitant
bonding of the O atom to the adjacent β carbon. These carbenes have a thermodynamically
favored anti configuration of these C–H and C–O bonds but it is proposed that an
unobserved syn carbene is the kinetic primary product, which then easily epimerizes by …
[引用][C] Coupling of Aromatic Aldehydes with CO2Me-Substituted TpMe2Ir (III) Metallacyclopentadienes
A Espinosa-Roa, V Salazar Pereda… - … , 31 (8), 3185 …, 2012 - American Chemical Society
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