Unsymmetrically Substituted Butenynyl-Iron(II) Complexes

作者：Field Leslie D^*; Magill Alison M; Pike Stuart R; Turnbull Anthony J; Dalgarno Scott J; Turner Peter; Willis Anthony C

来源：European Journal of Inorganic Chemistry, 2010, (16): 2406-2414.

DOI：10.1002/ejic.201000281

• Iron
• Phosphane ligands
• Enynes
• Rearrangement

The preparation and characterisation of iron(II) complexes bearing unsymmetrically 1,4-disubstituted eta(3)-butenynyl ligands, cis-[Fe(C(C CR)=C(H)R')(dmpe)(2)][PF(6)] (e.g. R = tBu, R' = Ph 2e; R = Ph, R' = tBu 2e') are reported. The complexes were obtained as a mixture by protonation and rearrangement of the bis(acetylido)iron(II) complex trans-Fe(CCPh)-(CCtBu)(dmpe)(2). The complexes 2e and 2e' were separated by crystallisation and were both characterised crystallographically. In addition, a number of complexes with symmetrically 1,4-disubstituted butenynyl ligands cis-[Fe(C(C CR)=C(H)R)(dmpe)(2)][PF(6)] (R = p-C(6)H(4)-OMe 2a; pC(6)H(4)-Me 2b. C(6)H(3)-3,5-(CF(3))(2) 2c; 1-adamantyl 2d) were synthesised by protonation and rearrangement of the corresponding bis(acetylido)iron(II) complexes.

• 出版日期2010-6