Results 51 to 60 of about 6,583 (223)

α,β-Enone Borylation by Bis(Pinacolato)Diboron Catalyzed by Cu₃(BTC)₂ Using Cesium Carbonate as a Base

Nanomaterials, 2021
Cu3(BTC)2 (BTC: 1,3,5-benzenetricarboxylate) as a heterogeneous catalyst in the presence of cesium carbonate as a base is reported for the borylation of α,β-conjugated enones by bis(pinacolato)diboron (B2pin2).
Amarajothi Dhakshinamoorthy, Mercedes Alvaro, Abdullah M. Asiri, Hermenegildo Garcia   +3 more
doaj   +1 more source

Directed electrophilic C-H borylation using Lewis-Base stabilised boranes [PDF]

Aryl boranes are widely utilised in a range of applications, including as emissive materials, as active pharmaceuticals and, most commonly, as intermediates in synthetic transformations, with the most notable being the Suzuki-Miyaura cross-coupling ...
Noone, Emily
core   +1 more source

Sodium-Promoted Borylation of Polycyclic Aromatic Hydrocarbons [PDF]

, 2021
Sodium dispersion promotes the reductive borylation of polycyclic aromatic hydrocarbons (PAHs) with MeOBpin. Anthracenes and phenanthrenes are converted to the corresponding dearomatized diborylated products.
Yorimitsu, Hideki, Fumiya Takahashi, Fukazawa, Mizuki, Hideki Yorimitsu, Takahashi, Fumiya, Mizuki Fukazawa   +5 more
core   +1 more source

Specific Position of Halogen in Crystalline TADF Scintillators Enables Efficient Triplet Harvesting Through Vibrational Modulation of Spin–Orbit Coupling

Advanced Materials, EarlyView.
Specific ortho‐halogenation transforms crystalline TADF emitters into efficient organic scintillators. Fluorine reduces the effective singlet–triplet separation, while chlorine combines near‐degenerate excited states with vibrational modulation of spin–orbit coupling.
Illia E. Serdiuk, Michał Mońka, Artur Sikorski, Konrad J. Drozdowski, Mohanad S. Eid, Krzysztof Wisniewski, Damian Trzybiński, Marcin E. Witkowski, Winicjusz Drozdowski   +8 more
wiley   +1 more source

Direct borylation of terrylene and quaterrylene

Beilstein Journal of Organic Chemistry, 2020
The preparation of large rylenes often needs the use of solubilizing groups along the rylene backbone, and all the substituents of the terrylenes and quaterrylenes were introduced before creating the rylene skeleton.
Haruka Kano, Keiji Uehara, Kyohei Matsuo, Hironobu Hayashi, Hiroko Yamada, Naoki Aratani   +5 more
doaj   +1 more source

Nickel-Catalyzed Ipso-Borylation of Silyloxyarenes via C–O Bond Activation [PDF]

, 2021
A mild method to convert silyloxyarenes to pinacol boronic esters using nickel catalysis is described. In contrast to other borylation protocols of relatively inert C–O bonds, the method is competent in activating the carbon-oxygen bond of silyloxyarenes
John, Montgomery, Wesley, Pein, Eric, Wiensch   +2 more
core   +1 more source

A planar per-borylated digermene

Dalton Transactions, 2023
A tetraboryl digermene features both a planar ‘alkene-like’ geometry for the Ge 2 B 4 core, and an exceptionally short GeGe double bond, consistent with lowest energy ( in silico ) fragmentation into two
Xiongfei Zheng, Agamemnon E. Crumpton, Mathias A. Ellwanger, Simon Aldridge   +3 more
openaire   +2 more sources

Photoinduced Site-Selective Aryl C-H Borylation with Electron-Donor-Acceptor Complex Derived from B₂Pin₂ and Isoquinoline

Molecules
Due to boron’s metalloid properties, aromatic boron reagents are prevalent synthetic intermediates. The direct borylation of aryl C-H bonds for producing aromatic boron compounds offers an appealing, one-step solution.
Manhong Li, Yi-Hui Deng, Qianqian Chang, Jinyuan Li, Chao Wang, Leifeng Wang, Tian-Yu Sun   +6 more
doaj   +1 more source

Catalytic Borylation of Dinitrogen into Borylamines and Borylhydrazines Using Rhenium Complexes under Ambient Reaction Conditions [PDF]

, 2022
In the presence of a catalytic amount of a dinitrogen-bridged dirhenium complex bearing PNP-type pincer ligands, an atmospheric pressure of dinitrogen reacted with potassium as a reductant and dicyclohexylchloroborane as a borylating reagent at room ...
Shogo, Kuriyama, Kazunari, Yoshizawa, Hiromasa, Tanaka, Akihito, Egi, Fanqiang, Meng, Yoshiaki, Nishibayashi   +5 more
core   +1 more source

Cu-Catalyzed Decarboxylative Borylation [PDF]

ACS Catalysis, 2018
A simple method for the conversion of carboxylic acids to boronic esters via redox-active esters (RAEs) is reported using copper catalysis. The scope of this transformation is broad, and compared with the known protocols available, it represents the most inexpensive, rapid, and operationally simple option. In addition to a full exploration of the scope,
Jie Wang, Ming Shang, Helena Lundberg, Karla S. Feu, Scott J. Hecker, Tian Qin, Donna G. Blackmond, Phil S. Baran   +7 more
openaire   +2 more sources