The reaction of the BH3-THF reagent with benchrotrenic alkenes, followed by a water addition and the formation of hydrogenated products are described. This formation and the regioselectivity observed is a consequence of the electron withdrawing effect of the Cr(CO)3 group.
Addition de carbanions α benchrotreniques sur divers aldehydes non enolisables; evolution des produits primaires d'addition par oxydation d'oppenauer-woodward, influence de la substitution
作者:M.-C. Senechal-Tocquer、D. Senechal、J.-Y. Le Bihan、D. Gentric、B. Caro
DOI:10.1016/0022-328x(87)80307-8
日期:1987.4
Aromatic hydrocarbons complexed with a Cr(CO)3 unit react with benzaldehydes and furfural in THF and in the presence of t-BuOK at the benzylic position to give condensation products in good yields. Formation of ketones by “in situ Oppenauer-Woodward” oxidation is observed. Influence of ring substituents on this formation is discussed.
Synthesis of oximes from (arene)Cr(CO)<sub>3</sub>complexes by nitrosation at the benzylic position
作者:Denis Sénéchal、Marie-Claude Sénéchal-Tocquer、Daniel Gentric、Jean-Yves Le Bihan、Bertrand Caro、Michel Gruselle、Gérard Jaouen
DOI:10.1039/c39870000632
日期:——
In basic media, aromatic hydrocarbons complexed by Cr(CO)3 units are readily nitrosated at the benzylicposition by ButONO, giving rise to (Z)- and (E)-oximes in moderate to excellent yields.
Formation et reactivite des carbanions benchrotreniques dans le thf. addition d'oxalate d'ethyle et de benzaldehyde. evolution des produits d'addition par oxydation d'oppenauer-woodward
作者:M.-C. Senechal-Tocquer、D. Senechal、J-Y. Le Bihan、D. Gentric、B. Caro
DOI:10.1016/0022-328x(85)80211-4
日期:1985.8
Reactions of ?-haloalkylbenzenechromium tricarbonyl with metal-containing nucleophiles