<i>N</i>,<i>N</i>-Dimethylglycine-Promoted Ullmann-Type Coupling Reactions of Aryl Iodides with Aliphatic Alcohols
作者:Hui Zhang、Dawei Ma、Weiguo Cao
DOI:10.1055/s-2007-968010
日期:2007.2
The Ullmann-type coupling reactions of aryl iodides and aliphaticalcohols occur at 110 °C with N,N-dimethylglycine as the ligand, giving aryl alkyl ethers in good to excellent yields.
芳基碘化物和脂肪醇的 Ullmann 型偶联反应在 110 °C 下发生,N,N-二甲基甘氨酸作为配体,产生了良好到极好的收率的芳基烷基醚。
FLUORESCENT DYES, METHODS AND USES THEREOF
申请人:Blackwell E. Helen
公开号:US20070128658A1
公开(公告)日:2007-06-07
The present invention provides a method for identifying and characterizing candidate fluorescent molecules. This method involves the generation of spatially addressed arrays of heterocyclic compounds which are candidate fluorescent molecules. The spatially addressed array can be used to identify fluorescent molecules among the candidate molecules. The spatially addressed array can be used to determine the optical characteristics of one more candidate molecules. The invention also provides methods for making such arrays of heterocyclic compounds. In a specific embodiment, synthetic methods are provided for synthesis of triarylpyridines, particularly unsymmetric triarylpyridines. n preferred embodiments, the present invention provides novel heterocyclic fluorescent compounds having deazalumazine, cyanopyridine or pyrimidine cores. Heterocyclic fluorescent compounds of this invention are useful as dyes to label molecules such as nucleic acids, peptides and proteins, and particularly antibodies. In other embodiments, the novel heterocyclic fluorescent compounds are useful as dyes to label cellular compartments and organelles. The novel heterocyclic fluorescent compounds can also be used as sensors or indicators of specific metal ions, chemical warfare agents and pH.
Catalyst- and Oxidizing Reagent-Free Electrochemical Benzylic C(sp<sup>3</sup>)–H Oxidation of Phenol Derivatives
作者:Zhong-Wei Hou、Ming-Ming Zhang、Wen-Chao Yang、Lei Wang
DOI:10.1021/acs.joc.2c00455
日期:2022.6.17
A site-selective electrochemical approach for the benzylic C(sp3)–H oxidation reaction of phenolderivatives along with hydrogen evolution has been developed. The protocol proceeds in an easily available undivided cell at room temperature under catalyst- and oxidizing reagent-free conditions. The corresponding aryl aldehydes and ketones are obtained in satisfactory yields, and the gram-scale synthesis