Nesmejanow, A. N.; Ssasonowa, W. A.; Drosd, V. N., Chemische Berichte, 1960, vol. 93, p. 2717 - 2729
摘要:
DOI:
作为产物:
描述:
cyclopenta-1,3-diene;1,14-di(cyclopenta-2,4-dien-1-yl)spiro[2,13,15-trioxa-10-azonia-14-bora-1-boranuidatricyclo[8.5.0.03,8]pentadeca-3,5,7,9-tetraene-12,1'-cyclohexane];iron(2+) 以
not given 为溶剂,
生成 ferrocene boronic acid
参考文献:
名称:
Ferrocenylboronates: Crystal structures and electrochemical properties
摘要:
The electrochemical behavior of a series of eight previously reported monoferrocenyl- and diferrocenyl-boronates derived from tridentate ligands has been studied. Even if most mononuclear and all the dinuclear complexes examined showed to undergo slow decomposition in nonaqueous solution (releasing free ferrocenyl boronic acid), their redox activity has been investigated. It has been proved that the oxidation of the two ferrocenyl subunits in the dimeric species proceeds simultaneously,. indicating that no mutual electronic interaction exists between them. Additionally, the solid-state molecular structures of two diferrocenyl complexes (2a and 2b) were studied by X-ray diffraction. The analysis confirms the formation of a [5.4.0] heterobicycle with the presence of two different boron atoms, one in a tetrahedral geometry and the other one in a trigonal geometry. (c) 2005 Elsevier B.V. All rights reserved.
Straightforward Synthetic Access to<i>gem</i>-Diaurated and Digold σ,π-Acetylide Species
作者:Adrián Gómez-Suárez、Stéphanie Dupuy、Alexandra M. Z. Slawin、Steven P. Nolan
DOI:10.1002/anie.201208234
日期:2013.1.14
The more the merrier: Following previous investigations on the synthesis of organogold complexes by using [Au(IPr)(OH)], a high‐yielding straightforward methodology for the synthesis of gem‐diaurated and σ,π‐acetylide species via a dinuclear gold hydroxide complex [Au(IPr)}2(μ‐OH)][BF4] (see scheme) has now been developed.
acid (1) and its derivatives have been mainly used as polyol sensors and in cross-coupling reactions. However, a literature survey revealed that there is not a paper describing the full characterization of ferroceneboronic acid derivatives and that useful boron protecting groups have not been studied in the ferrocene series. Here, we present an optimized multigram-scale synthesis of the known ferroceneboronic
Three-Component Synthesis of Substituted η<sup>5</sup>-Cyclopentadienyltricarbonylrhenium Complexes: Scope, Limitations, and Mechanistic Interpretations
作者:Filippo Minutolo、John A. Katzenellenbogen
DOI:10.1021/om990128t
日期:1999.6.1
with the rhenium precursor. Then, in the rate-determining step, the resulting preassociated rhenium−nucleophile intermediate reacts with C5H4N2 via a concerted SN2-like transition state. The same general mechanistic pathway seems to be followed by two very different classes of nucleophiles, carboxylates and boronicacids, in the synthesis of acyloxy- and carbon-substituted CpRe(CO)3 complexes, respectively
我们研究了取代的CpRe(CO)3配合物“三组分”合成的范围和机理,该过程涉及亲核试剂与重氮环戊二烯(C 5 H 4 N 2)和fac -Re(CO)3 +物种的反应。 。我们发现只有中等强度的亲核试剂(卤素,羧酸盐,硼酸)适用于这种转化,并且它显示出对亲核试剂的空间和电子特征非常敏感。的效果的哈米特型ρσ分析对-该取代基与几种苯甲酸酯的相对速率的取代基表明,该反应通过供电子性取代基而加速。基于结构/反应性关系和NMR实验的机械分析表明,亲核试剂最初会与the前体反应。然后,在速率确定步骤中,所得预缔合的-亲核中间体通过协调的S N 2-过渡态与C 5 H 4 N 2反应。在酰氧基和碳取代的CpRe(CO)3的合成中,似乎遵循相同的一般机理途径,是截然不同的两类亲核试剂(羧酸盐和硼酸)配合物。特别地,硼酸酯缺乏反应性可以通过by与亲核试剂的去质子化的羟基之间的必要的预缔合步骤来解释,这仅对于游离硼酸是可能的。
Through space interaction between ferrocenes mediated by a thioether
作者:G. Joel Meyer、Gabriel B. Hall、Elliott R. Smith、Takahiro Sakamoto、Dennis L. Lichtenberger、Richard S. Glass
DOI:10.1016/j.poly.2014.06.050
日期:2015.1
Abstract A series of conformationally constrained 2,6-bisferrocenylphenyl thioethers were synthesized via Suzuki–Miyaura cross coupling reactions. Structural information was obtained using X-ray crystallography and dynamic 1H NMR spectroscopic studies, showing highly constrained m-terphenyl systems. Interaction of the ferrocene moieties through space mediated by the sulfur were studied by ultra-violet
Synthesis, structure and <i>in vitro</i> antiproliferative effects of alkyne-linked 1,2,4-thiadiazole hybrids including erlotinib- and ferrocene-containing derivatives
Fourteen 1,2,4-thiadiazole derivatives were synthesized and structurally characterized; their in vitro antiproliferative activities were evaluated on four tumorous cell lines (U87, A2058, A431, and HepG2).