329214-79-1Relevant articles and documents
Recyclable Pd2dba3/XPhos/PEG-2000 System for Efficient Borylation of Aryl Chlorides: Practical Access to Aryl Boronates
Cai, Mingzhong,Huang, Bin,Luo, Chengkai,Xu, Caifeng
, (2021/12/02)
Pd2dba3/XPhos in poly(ethylene glycol) (PEG-2000) is shown to be a highly stable and efficient catalyst for the borylation of aryl chlorides with bis(pinacolato)diboron. The borylation reaction proceeds smoothly at 110 °C, delivering a wide variety of aryl boronates in good to excellent yields with high functional group tolerance. The crude products were easily isolated via simple extraction of the reaction mixture with cyclohexane. Moreover, both expensive Pd2dba3 and XPhos in PEG-2000 system could be readily recycled and reused more than six times without loss of catalytic efficiency.
Enzyme-like Supramolecular Iridium Catalysis Enabling C?H Bond Borylation of Pyridines with meta-Selectivity
Al-Shehimy, Shaymaa,Gramage-Doria, Rafael,Roisnel, Thierry,Trouvé, Jonathan,Zardi, Paolo
supporting information, p. 18006 - 18013 (2021/05/07)
The use of secondary interactions between substrates and catalysts is a promising strategy to discover selective transition metal catalysts for atom-economy C?H bond functionalization. The most powerful catalysts are found via trial-and-error screening due to the low association constants between the substrate and the catalyst in which small stereo-electronic modifications within them can lead to very different reactivities. To circumvent these limitations and to increase the level of reactivity prediction in these important reactions, we report herein a supramolecular catalyst harnessing Zn???N interactions that binds to pyridine-like substrates as tight as it can be found in some enzymes. The distance and spatial geometry between the active site and the substrate binding site is ideal to target unprecedented meta-selective iridium-catalyzed C?H bond borylations with enzymatic Michaelis–Menten kinetics, besides unique substrate selectivity and dormant reactivity patterns.
Compounds comprising benzophenone group, Organic electronic device comprising organic layers comprising the photo-cured of the monomer compounds
-
Paragraph 0293-0294; 0305-0306, (2021/03/09)
The compound represented by Formula I or II is provided as an organic material layer material of an organic electronic device. The benzophenone functional group-containing compound represented by the following Chemical I or Chemical Formula II: I (Chemical Formula Ar -) (R). 1 -R2 -Bpm In the formula, m is 1 and 10, and Ar is a substituted or unsubstituted m having a C-order linking group. 6 -C60 Substituted or unsubstituted m having aryl group, C nd-linking group3 -C60 Substituted or unsubstituted fused m with heteroaryl groups or C primary linking groups6 -C60 Aryl group, R1 And R2 Each independently represents a simple bond, O - a substituted or unsubstituted C. 6 -C30 Arylene group, substituted or unsubstituted C3 -C30 Heteroarylene group, substituted or unsubstituted C1 -C10 The alkylene group and Bp are 1 divalent linking groups derived from benzophenone functional groups. Chemical Formula II. In the formula, n is at least 1 and Ar ' is a substituted or unsubstituted m having a C-order linking group. 6 -C60 Aryl group Substituted or unsubstituted m having a C nd order linker3 -C60 Substituted or unsubstituted fused m with heteroaryl groups or C primary linking groups6 -C60 Aryl group, R3 And R4 Each independently represents a simple bond, O - a substituted or unsubstituted C. 6 -C30 Arylene group, substituted or unsubstituted C3 -C30 Heteroarylene group, substituted or unsubstituted C6 -C30 Fused arylene groups, substituted or unsubstituted C1 -C10 The alkylene group and Bp ' are 1 divalent linking groups derived from benzophenone functional groups.