Unexpected formation of substituted naphthalenes and phenanthrenes in a GaCl3 mediated dimerization–fragmentation reaction of 2-arylcyclopropane-1,1-dicarboxylates
摘要:
Dimethyl 2-arylcyclopropane-1,1-dicarboxylates on heating with GaCl3 undergo dimerization to afford arylnaphthalenes or phenanthrenes. A possible reaction mechanism including elimination of two dimethyl malonate molecules was proposed, dimethyl malonate gallium complex Ga3+[H2C(CO2Me)(2)}](3)(GaCl4-)(3) was isolated and characterized by X-ray diffraction analysis.
Synthesis of 2-phenylnaphthalenes from styrene oxides using a recyclable Brønsted acidic [HNMP]<sup>+</sup>HSO<sub>4</sub><sup>−</sup> ionic liquid
作者:Kishor V. Wagh、Bhalchandra M. Bhanage
DOI:10.1039/c5gc01170a
日期:——
This work reports novel and efficient protocol for the synthesis of 2-phenylnaphthalenes from styrene oxides using recylable ionic liquid. The ionic liquid N-methyl-2-pyrrolidone hydrogensulfate [HNMP]+HSO4- played a dual role of...
We report a straightforward, metal-free, efficient protocol for the synthesis of 2-phenylnaphthalenes from 1-phenylethane-1,2-diols under mild conditions. In this strategy, 1,1,1,3,3,3-hexafluoro-2-propanol is used as a solvent that stabilizes the reaction intermediate. An in situ IR experiment revealed that the reaction proceeds through the formation of phenylacetaldehyde followed by a [4+2] Diels–Alder
我们报告了一种在温和条件下从 1-苯基乙烷-1,2-二醇合成 2-苯基萘的简单、无金属、有效的方案。在该策略中,1,1,1,3,3,3-六氟-2-丙醇用作稳定反应中间体的溶剂。原位 IR 实验表明,该反应通过苯乙醛的形成以及 [4+2] Diels-Alder 反应进行。进行了几个对照实验以获得对反应的机理见解。
New Anthracene Derivatives, Preparation Method Thereof and Organic Light Emitting Diode Using the Same
申请人:Kim Kong-Kyeom
公开号:US20100252817A1
公开(公告)日:2010-10-07
The present invention provides a novel anthracene derivative, a method for preparing the same, and an organic electronic device using the same. The anthracene derivative according to the invention can function alone as a light emitting host, in particular, as a blue host in an organic electronic device. Further, the anthracene derivative according to the invention can also function as a hole injecting or hole transporting material, an electron injecting or electron transporting material, or a light emitting material in an organic electronic device including a light emitting device. Therefore, the organic electronic device according to the present invention shows excellent characteristics in efficiency, drive voltage and stability.