Isolation of stable secondary cationic iron carbene complexes dicarbonyl(.eta.5-cyclopentadienyl)phenylcarbeneiron hexafluorophosphate and carbonyl(.eta.5-cyclopentadienyl)triphenylphosphine(phenylcarbene)iron hexafluorophosphate

Metal-Assisted Cycloaddition Reactions in Organotransition Metal Chemistry

“…Naturally, such interference does not apply to benzylidene transfer reactions which can efficiently and stereoselectively be effected with (CO) 5 WdCH-C 6 H 4 R [17][18][19] or Cp(CO)(L)MdCH(C 6 H 4 R) + (M ) Fe, Ru; L ) CO, PPh 3 ; R ) p-H, p-F, p-Me, p-OMe). [20][21][22] Benzylidene transfer from (CO) 5 WdCHPh to the thiocarbonyl group in thiobenzophenones results in thiirane complexes. 23 The same complexes can also be prepared by reaction of the corresponding (CO) 5 W-(thiobenzophenone) complex with diphenylazomethane.…”

Chemistry of 19-electron dinitrosyl complexes of tungsten and secondary carbene derivatives of iron

“…As does [4], both [41] and [44] As anticipated, [44] reacts smoothly with diethylamine to afford {Cp(CO)(P(OPh)2)Fe[CH(NEt2)]}CF^SO^, [45], in 56% yield (Eqn. 86).…”

“…86). As in [23], [45] is a pale yellow, air-stable complex which shows two ] ] 3 distinctive methylene and methyl groups in its H and C NMR spectra.…”

“…The inequivalency of the ethyl groups in [45] indicate the importance of N to P-P TT-backbonding in the complex. The pertinent spectral data for [45] are summarized in Table 14.…”

“…The inequivalency of the ethyl groups in [45] indicate the importance of N to P-P TT-backbonding in the complex. The pertinent spectral data for [45] are summarized in Table 14. (7) 0.1492(13) 0.2976(12) 0.9763 (7) '^2 0.2111(3) 0.9609(3) 0.1274 (2) 0.1081(9) 0.0540 (7) 0.1006 (6) ^2 0.3126(9) 0.8683(6) 0.1571 (5) '3 0.2901(10) 0.0413 (7) 0.1861 (7) 0.1344(13) 0.9374(11) 0.2079 (8).…”