NOVEL COUPLING BETWEEN TRICARBONYL(7-AZABENZONORBORNADIENE)IRON COMPLEXES AND CYCLOHEXENE TO FORM STEREOSPECIFICALLY A (C-5 SUBSTITUTED ETA(4)-CYCLOHEXADIENE)FE(CO)(3) MOIETY
Ch. Sun et al., NOVEL COUPLING BETWEEN TRICARBONYL(7-AZABENZONORBORNADIENE)IRON COMPLEXES AND CYCLOHEXENE TO FORM STEREOSPECIFICALLY A (C-5 SUBSTITUTED ETA(4)-CYCLOHEXADIENE)FE(CO)(3) MOIETY, Journal of organometallic chemistry, 481(2), 1994, pp. 179-181
Novel coupling between tricarbonyl(7-azabenzonorbornadiene)iron comple
xes 1 and cyclohexene occurs thermally and photochemically. Complexes
2 were formed stereospecifically with a yield of 21-34% via C-C bond f
ormation from the exo-face of 7-ABND accompanied by the generation of
((4) eta-cyclohexadiene)Fe(CO)(3) moieties with Fe(CO)(3) syn to the n
ew C-C bond. At the same time, C-5 of this moiety was functionalized w
ith a bulky 7-ABND heterocycle.