occurs in 9:1 THF−MeOH to give the expected complex [Fe(C5Me5)(CO)η2-CH(OMe)C6H4-o-OMe}] (9) as a single diastereoisomer, while reduction in pure THF affords the organoborohydride complex [Fe(C5Me5)(CO)η2-H2BHCH2C6H4-o-OMe}] (10). The latter reaction involves a formal insertion of BH3 into a Fe−C bond, promoted by the potential vacant coordination site. The carbene ligand is easily displaced and recovered
甲氧碳烯络合物[Fe(C 5 Me 5)(CO)2 C(OMe)C 6 H 4 - o -X}] [OTf](2a,X = OMe; 2b,X = Cl)是良好的前体相应的(η 2 -C,X)螯合卡宾络合物的[Fe(C 5我5)(CO)η 2 -C(OME)C 6 H ^ 4 - ö -X}] [光学传递函数](OTF = CF 3 SO 3)(5a,b)。的η 2 -
氯衍
生物5b中通过X射线衍射表征,证实了五元环
金属环的形成。所有新的卡宾配合物,包括非杂原子稳定的卡宾配合物[Fe(C 5 Me 5)(CO)2 C(H)C 6 H 4 - o -OMe}] [OTf](4a)都已完全存在。用1 H和13 C NMR谱表征。螯合的不稳定性ø -取代在
化学上通过形成相应的中性
碘卡宾配合物的的[Fe(C证实5我5)(CO)(I)η 1 -C(OME)C 6 ħ4 - o -X}](6