C5Me4(CH2)3(OCH2CH2)3OMe: a tentacle-bearing cyclopentadienyl ligand and its use in complex chemistry
作者:Ulrich Siemeling
DOI:10.1039/c39920001335
日期:——
The reaction of 2,3,4,5-tetramethylcyclopent-2-enone with the Grignard reagent MeO(CH2CH2O)3(CH2)3MgCl 3 affords, after acidic workup, the novel cyclopentadiene HC5Me4(CH2)3(OCH2CH2)3OMe 4, which allows the synthesis of cyclopentadienyl metal complexes that owing to the tentacle function show unusually high solubilities in solvents of all polarities; two such complexes are the ferrocene [FeC5Me4(
2,3,4,5-四甲基环戊-2-烯酮与格氏试剂MeO(CH 2 CH 2 O)3(CH 2)3 MgCl 3的反应在酸性条件下反应后得到新型环戊二烯HC 5 Me 4( CH 2)3(OCH 2 CH 2)3 OMe 4,该化合物可以合成环戊二烯基金属配合物,该配合物由于触手的作用,在所有极性的溶剂中均显示出异常高的溶解度;两个这样的络合物是二茂铁[Fe C 5 Me 4(CH 2)3(OCH 2 CH 2) 3 OMe} 2 ] 6和羰基钴[Co(CO) 2 C 5 Me 4(CH 2) 3(OCH 2 CH 2) 3 OMe}] 7。