Activation of aryl ethers and aryl sulfides by the Fe(η5-C5H5)+ group for the synthesis of phenol dendrons and arene-centered poly-olefin dendrimers
作者:Vale´rie Sartor、Sylvain Nlate、Jean-Luc Fillaut、Laurent Djakovitch、Françoise Moulines、Vale´rie Marvaud、Fre´de´ric Neveu、Jean-Claude Blais、Jean-François Le´tard、Didier Astruc
DOI:10.1039/b000370k
日期:——
analogous aryl sulfide complexes [FeCp(η6-p-RSC6H4Me)][PF6], 4a (R=Me) and 4b (R=Et), also give 3 [together with (allyl)3CC6H4SR, 5] by reaction with ButOK and allyl bromide. The dendron 3 reacts with 1,3,5-C6H3[C(CH2CH2CH2X)3]3, 6, giving the 27-allyl dendrimer 7 (first generation) whose purity, monitored by MALDI-TOF mass spectroscopy, is not as good when the reaction is performed with X=I (6a) as
描述了有机铁介导的树枝状和树枝状大分子的合成。的反应〔FeCp(η 6 - p -EtOC 6 ħ 4 Me)中] [PF 6 ],1,具有卜吨行或KOH和在THF中的烯丙基溴使酸性我取代基的两个triallylation和的异裂将O-ME键,这导致三烯丙基oxocyclohexadienyl复杂FeCp [η 5 - p - (烯丙基)3 CC 6 H ^ 4 O], 2。如果过剩卜ŧ加入OK,该一锅八步反应中获得的主要化合物为无铁酚衍生物对-(烯丙基)3 CC 6 H 4 OH,3,收率为50%。出人意料的是,类似的芳基硫化物配合物[FeCp(η 6 - p -RSC 6 ħ 4 Me)中] [PF 6 ],4A(R = Me)的和图4b(R = ET),也给3 [连同(烯丙基)3 CC 6 H ^ 4 SR,5 ]通过与卜反应吨行和烯丙基溴。树突3与发生反应1,3,5-C 6 H ^