A thioxanthone ring system derivative compound is provided. The thioxanthone ring system derivative compound is represented by a formula (I):
wherein X is a substituent being one selected from a group consisting of halogens, wherein R
1
is a substituent being one selected from a group consisting of sulfur and sulfur dioxide, wherein R
2
is a substituent being one selected from a group consisting of C
1
˜C
10
alkyl group, C
3
˜C
10
branched alkyl group, C
3
˜C
10
cyclic alkyl group, phenyl group, phenyl alkyl group, and wherein hydrogen of phenyl group can be partially substituted by halogens, alkoxyl group, C
1
˜C
10
alkyl group, nitro group or amine group.
Biarylalkyl Carboxylic Acid Derivatives as Novel Antischistosomal Agents
作者:Patrick Mäder、Ariane S. Blohm、Thomas Quack、Kerstin Lange-Grünweller、Arnold Grünweller、Roland K. Hartmann、Christoph G. Grevelding、Martin Schlitzer
DOI:10.1002/cmdc.201600127
日期:2016.7.5
biarylalkyl carboxylicacid derivatives for their antischistosomal activity against S. mansoni. These compounds showed significant influence on egg production, pairing stability, and vitality. Tegumental lesions or gut dilatation was also observed. Substitution of the terminal phenyl residue in the biaryl scaffold with a 3-hydroxy moiety and derivatization of the terminal carboxylicacid scaffold with
A focused library of phosphine ligands was constructed for structural optimization. The catalyst can be used to perform the Suzuki–Miyaura cross-coupling reaction of aryl and heteroaryl chlorides.
General and highly efficient fluorinated-N-heterocyclic carbene–based catalysts for the palladium-catalyzed Suzuki–Miyaura reaction
作者:Taoping Liu、Xiaoming Zhao、Qilong Shen、Long Lu
DOI:10.1016/j.tet.2012.05.068
日期:2012.8
acid with aryl halides and heteroarylhalides, but also efficient for coupling of other heteroarylhalides and heteroaryl boronic acids. Finally, the catalyst is highly effective for Suzuki–Miyaura reaction of aryl bromides and chlorides with 0.01–0.1 mol % loading if the temperature was raised at refluxed THF/H2O.
据报道,一种通用且高效的三氟甲基化-N-杂环卡宾(NHC)基催化剂可用于钯催化的Suzuki-Miyaura反应。在催化剂的存在下,未活化的芳基氯和三氟甲磺酸与芳基硼酸的反应在室温下发生,收率好至极好(63-98%)。此外,由Pd(OAc)2 /咪唑鎓盐6a的组合产生的催化剂不仅对于杂芳基硼酸与芳基卤化物和杂芳基卤化物的偶联有效,而且对其他杂芳基卤化物和杂芳基硼酸的偶联有效。最后,如果温度在回流的THF / H 2 O上升高,则该催化剂对于0.01-0.1 mol%负载量的芳基溴化物和氯化物的Suzuki-Miyaura反应非常有效。
Metal-Free Aerobic Oxidative Selective C–C Bond Cleavage in Heteroaryl-Containing Primary and Secondary Alcohols
aerobic oxidativeselective C–C bond-cleavage reaction in primary and secondary heteroaryl alcohols is reported. This reaction was highly efficient and tolerated various heteroaryl alcohols, generating a carboxylic acid derivative and a neutral heteroaromatic compound. Experimental studies combined with density functional theory calculations revealed the mechanism underlying the selective C–C bond