Fluorene Complexes of Group 9 Metals: Fluorene Effect and Application for Reductive Amination
作者:Vladimir B. Kharitonov、Evgeniya Podyacheva、Yulia V. Nelyubina、Dmitry V. Muratov、Alexander S. Peregudov、Gleb Denisov、Denis Chusov、Dmitry A. Loginov
DOI:10.1021/acs.organomet.9b00378
日期:2019.8.26
determined by X-ray diffraction. The rhodium complex [2a](SbF6)2 readily undergoes the replacement of the fluorene ligand by mesitylene, being more reactive than the benzene derivative [CpRh(η6-C6H6)](SbF6)2. According to experimental data and DFT calculations, the fluorene elimination proceeds via a cascade of η6 → η5 → η1 haptotropic rearrangements. The complex [2b](SbF6)2 (at 1 mol % loading) effectively
的η 6 -芴环戊二烯基络合物[(η 5 -C 5 - [R 5)M(η 6 -芴)〕(SBF 6)2(1:M = CO,R =甲基; 2A:M = RH,R = H ;图2b:M = IR,R = H)是由从碘抽象合成[(η 5 -C 5 - [R 5)MI 2 ] ñ与AgSbF 6在芴的存在。该过程也适用于茚基衍生物的合成[(η 5 -茚基)M(η 6 -芴)〕(SBF 6)2(图3a:M = RH;图3b:M = Ir)的从[(η开始5 -茚基)MI 2 ] Ñ。通过X射线衍射确定[ 1 ](SbF 6)2和[ 2b ](SbF 6)2的结构。铑络合物[ 2A ](SBF 6)2容易经历更换由均三甲苯的芴配体的,比所述的苯衍生物反应性更强[CpRh(η 6 -C 6 H ^ 6)](SBF 6)2。根据实验数据和DFT计算,通过η的级联芴消除前进6个→η 5个→η 1 haptotropic重排。配合物[