Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 141556-42-5, is researched, SMILESS is CC1=CC(C)=CC(C)=C1[N+]2=[C-]N(C3=C(C)C=C(C)C=C3C)C=C2, Molecular C21H24N2Journal, Industrial & Engineering Chemistry Research called Imidazolium-Catalyzed Formation of Bisphenol A Polycarbonate with a Reduced Level of Branching, Author is Tay, Boonying; van Meurs, Martin; Tan, Jozel; Ye, Suming; Borgna, Armando; van Herk, Alexander M.; Selvaratnam, Selvasothi; Wang, Cun; Taniguchi, Shohei; Suzuki, Yousuke; Utsunomiya, Masaru; Ito, Mitsunobu; Monden, Toshiki; Shibata, Hiroki; Tomita, Shohei, the main research direction is imidazolium catalyzed bisphenolA polycarbonate branching.Name: 1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene.
The melt-phase polymerization of bisphenol A (BPA) and di-Ph carbonate (DPC) catalyzed by alk. metal catalysts produces polycarbonates with high branching, which impairs the product’s properties during weather resistance, ductility, and rheol. The use of an imidazolium-type catalyst can result in a reduced amount of branching relative to the benchmark Cs2CO3 catalyst. Modification of the imidazolium structure, especially by introducing a substitution at the C2 position, definitely improves the catalyst performance in enhancing the catalyst stability and reducing the branching level in the polycarbonate product. For the best catalyst identified (1,3-Ad2-2-Ph-Im-BPA), we have shown that at a DPC/BPA ratio of 1.075 and a catalyst loading of 7 ppm, the specifications can be met at the laboratory scale: polymerization time = 125 min, Mn = 11.0 K, OH = 660 ppm, branching = 460 ppm (∼75% reduction relative to the Cs2CO3 benchmark), and yellowness index = 6.3.
As far as I know, this compound(141556-42-5)Name: 1,3-Bis(2,4,6-trimethylphenyl)-1,3-dihydro-2H-imidazol-2-ylidene can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.
Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles