63788-27-2Relevant articles and documents
Revisiting the Polymerization of Diphenylacetylenes with Tungsten(VI) Chloride and Tetraphenyltin: An Alternative Mechanism by a Metathesis Catalytic System
Maeda, Katsuhiro,Miyairi, Mami,Nishimura, Tatsuya,Taniguchi, Tsuyoshi
, p. 14772 - 14780 (2020)
An alternative reaction mechanism of the polymerization of diphenylacetylelnes using a catalytic system composed of tungsten(VI) chloride and tetraphenyltin has been proposed through the optimization of reaction conditions and investigation of the effect of the electronic nature of diphenylacetylene monomers on the polymerizability. The detailed structures of the polymers have been suggested by mass spectrometric analysis of the obtained polymers and oligomers, which suggested that a phenyl group of tetraphenyltin has been introduced to an initiating end of the polymer chain. Mass spectrometric analysis also provided information about the termination processes of the polymerization. The experimental results strongly suggested that the polymerization of diphenylacetylenes using tungsten(VI) chloride and tetraphenyltin proceeds through a migratory insertion mechanism rather than the long-accepted metathesis mechanism.
Synthesis of isoniazid-substituted tetraphenylethylene stereoisomers with dramatic differences on aggregate morphologies, optical and mechanocharomic properties
Lu, Zhixiang,Lu, Shuhan,Cheng, Yi,Qin, Yu,Yang, Shaoxiong,Liu, Xiaolan,Fan, Wenwen,Zheng, Liyan,Zhang, Hongbin
, (2020/02/15)
Stereoisomers play an irreplaceable prominent role in life sciences. In molecular engineering, the isomers have been continuously designed and synthesized, and their interrelationships among structure-property-function have also been explored. However, th
Method for synthesizing tetraaryl ethylene compound
-
Paragraph 0083-0087; 0109-0113, (2019/01/06)
The invention relates to a method for synthesizing a tetraaryl ethylene compound. The method comprises the steps: using arylethylene as a raw material, a diaryl iodide salt as an arylating agent and acopper salt or a cuprous salt as a catalyst, and performing a reaction in an aprotic polar organic solvent at 80-150 DEG C for at least 10 hours so as to obtain the target product. The method has thecharacteristics of simple synthesis steps, mild synthesis conditions, high product yield and the like, and is a commercially valuable method for synthesizing the tetraaryl ethylene compound.