| 945492-60-4

• CAS: 945492-60-4
• 化学式: C₂₀H₂₇Fe₂NO₂
• 分子量: 425.134
• InChiKey: WZJWHAAMASNLKJ-UHFFFAOYSA-N

反应信息

• 作为反应物：
  描述：

  、 4-甲苯基乙炔 以 甲苯 为溶剂， 反应 16.0h， 以45%的产率得到
  参考文献：
  名称：

  Polysubstituted ferrocenes from [3 + 2] cycloaddition of alkynes with diiron bridging C3 ligands: Vinyliminium, bis-alkylidene and enimine

  摘要：

  The vinyliminium complexes [Fe-2{mu-eta(1):eta(3)-C(R')=C(R)C=NMe2}(mu-CO)(CO)(Cp)(2)][SO3CF3] (R = H, R' = Tol, 6a; R = H, R' = Me, 6b; R = R' = Me, 6c; R = H, R' = CO2Me, 6d; R = R' = Et, 6e; R = H, R' = nBu 6f; Tol = p-MeC6H4) react with HC CCPh2OH affording the corresponding polysubstituted ferrocenes [1-NMe2-2-CPh2OH-4-R'-5-R-Fc] (7a-f). The polysubstituted Cp ring results from [3 + 2] cycloaddition of the bridging ligand with the alkyne, and formation of ferrocenyl products implies fragmentation of the diiron parent complexes. The reaction of 6a yields also the oxo-eta(5)-cyclohexadienyl complex [Fe{eta(5)-C6H2O(NMe2)(Tol)(CPh2OH)}(Cp)] (8), which results from a [3 + 2 + 1] cycloaddition involving the bridging vinyliminium, the alkynol and CO.The bis-alkylidene complex [Fe-2{m-eta(1):eta(2)-C(R') CH2C = N(Me)(Xyl)}(mu-CO)(CO)(Cp)(2)] (9) (Xyl = 2,6-Me2C6H3) reacts similarly with alkynes (HC CR, R = Ph, CPh2OH, CO2Me) affording polysubstituted ferrocenes as a mixture of the two isomeric forms: [1-N(Me)(Xyl)-3-R-4-Tol-Fc] (R = Ph, 10a; R = CPh2OH, 11a, R = CO2Me 12a) and [1-N(Me)(Xyl)-2-R-4-Tol-Fc] (10b, 11b, 12b), respectively. Likewise, the mu-enimine complex [Fe-2{mu-eta(1):eta(3)-C(Et) = C(Et)C=NMe}(mu-CO)(CO)(Cp)(2)] (13) undergoes [3 + 2] cycloaddition with alkynes (HC CR, R = Tol, CH2OH) leading to the formation of the corresponding polysubstituted ferrocenes [1-NH(Me)-2-R-4-Et-5-Et-Fc] (R = Tol, 14; R = CH2OH, 15). The X-ray molecular structure of 7c has been determined. (C) 2013 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2013.05.018