91-13-4Relevant articles and documents
Completely regioselective, highly stereoselective syntheses of cis-Bisfullerene[60] adducts of 6,13-disubstituted pentacenes
Miller, Glen P.,Mack, James
, p. 3979 - 3982 (2000)
(Matrix Presented) cis-Bisfullerene[60] adducts of 6,13-disubstituted pentacenes (R = Ph, 4′-hydroxymethylphenyl) are synthesized in 75percent to 85percent isolated yields under kinetically controlled Diels-Alder conditions. The cycloadditions are completely regioselective and highly stereoselective, with only traces of the diastereomeric trans-bisfullerene[60] adducts forming.
Synthesis and computational bandgap engineering of New 3,4-Alkylenedioxypyrrole (ADOP) derivatives and investigation of their electrochromic properties
Kurtay, Gulbin,Soganci, Tugba,Ak, Metin,Gullu, Mustafa
, p. H896 - H905 (2016)
This research highlights the degree of conformity between our electrochemical and theoretical studies conducted on the newly designed electropolymerizable monomers (BuDOP, BenDOP and BenzoDOP) possessing 3,4-alkylenedioxypyrrole (ADOP) backbone (BuDOP). We tried to select logical enhancing of the structures in a stepwise in order to discuss the effects of benzene (BenDOP) and benzodioxane (BenzoDOP) like aromatic subunits to the electrochromic properties of the target monomers. Following to the completion of the synthetic steps, appropriate structural analyses of monomers were performed (FT-IR, GC-MS, 1H-NMR, 13CNMR). Subsequently, their corresponding polymers were prepared by electrochemical oxidation and characterized. Afterwards, our consecutive efforts have been contributed to theoretical studies in order to obtain information about their structural properties. To this aim, geometry optimizations were carried out using hybrid density functional theory (DFT/B3LYP/LANL2DZ) and HOMO, LUMO energy levels, HOMO-LUMO energy gaps (AE), electron affinity (EA) as well as ionization potential (IP) values were calculated. Theoretical data were then used for identifying the structure-electronic properties relationship and we aimed to determine the electrochromic properties of the studied monomers. Our results from the B3LYP/LANL2DZ calculations indicated that P(BenDOP) has the lowest HOMO-LUMO gap and we predicted that theoretical data were in good agreement with the experimental studies.
Formal [5+1] annulation reactions of dielectrophilic peroxides: Facile access to functionalized dihydropyrans
Zhong, Chen,Yin, Qi,Zhao, Yukun,Li, Qinfeng,Hu, Lin
supporting information, p. 13189 - 13192 (2020/11/09)
A general [5+1] annulation reaction, which utilized 4-bromo- or 4-mesyloxy-but-2-enyl peroxides as unique five-atom bielectrophilic synthons to participate in the C-C and the subsequent umpolung C-O bond-forming reactions with C1 nucleophiles, has been developed for the facile synthesis of 2,2-disubstituted dihydropyrans in high yields under mild basic conditions. The dihydropyrans, which are readily prepared on a gram scale by this new method, can be flexibly transformed into the biologically important tetrahydropyrans and pyranones in 1-2 steps.
Novel bridged tetradentate fourth subgroup metal complex as well as preparation method and application thereof (by machine translation)
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Paragraph 0223-0226; 0228; 0229-0231, (2020/10/14)
The invention provides a novel bridged tetradentate fourth subgroup metal complex and a preparation method and application thereof, wherein the complex has a formula a structure, the temperature tolerance is good, and the complex can maintain very high catalytic activity under 120 °C, can obtain ultrahigh molecular weight polyethylene, and can catalyze ethylene and norbornene, 1 - hexene and 1 - octene copolymerization reaction to obtain a polymer product with high comonomer insertion rate. (by machine translation)
