Results 71 to 80 of about 6,583 (223)

Do we really need ligands in Ir-catalyzed C–H borylation?

CHIMIA
Direct borylation of C–H bonds is a privileged strategy to access versatile building blocks and valuable derivatives of complex molecules (late-stage functionalization, metabolite synthesis).
Janis M. Zakis, Simone L. Kuhn, Joanna Wencel-Delord, Tomas Smejkal   +3 more
doaj   +1 more source

Switchable Magnesium Catalysis: Dehydrogenative Borylation Versus Hydroboration of Terminal Alkynes

ChemistryEurope
Organoboranes are key intermediates in modern synthetic chemistry, yet their preparation often relies on precious metal catalysts and multistep protocols.
Darakshan Parveen, Radhika Shrivas, Ganping Wang, Laurent Maron, Dipak Kumar Roy   +4 more
doaj   +1 more source

Intramolecular (directed) electrophilic C–H borylation [PDF]

, 2020
The intramolecular C–H borylation of (hetero)arenes and alkenes using electrophilic boranes is a powerful transition metal free methodology for forming C–B bonds.
Iqbal, S. A., Ingleson, M. J., Pahl, J., Yuan, K.   +3 more
core   +1 more source

Photoinduced Deaminative Borylation of Alkylamines [PDF]

Journal of the American Chemical Society, 2018
An operationally simple deaminative borylation reaction of primary alkylamines has been developed. The formation of electron-donor-acceptor complexes between N-alkylpyridinium salts and bis(catecholato)diboron enables photoinduced single-electron transfer and fragmentation to carbon-centered radicals, which are subsequently borylated.
Jingjing Wu, Lin He, Adam Noble, Varinder K. Aggarwal   +3 more
openaire   +4 more sources

Bistable Switching of π‐Conjugation in a Dithienylethene‐Bridged Luminescent Trityl Diradicaloid

Angewandte Chemie International Edition, EarlyView.
Photoswitches that affect π‐conjugation offer a powerful strategy for external manipulation of luminescent diradicals. Dithienylethene‐linked persistent trityl diradicaloids, DTE‐TTM2 and F6‐DTE‐TTM2, exhibit bistable switching of their optical, electrochemical and magnetic properties.
Xingmao Chang, Sören Schlittenhardt, Julia Zolg, Maximilian Herm, Siyang He, Vivek Chandrakant Wakchaure, Dinar Abdullin, Robert Göstl, Dirk M. Guldi, Alexander J. C. Kuehne, Sabine Richert, Max von Delius   +11 more
wiley   +1 more source

Iodine-Catalyzed Borylation of Benzylic Alcohols

, 2023
Direct borylation of benzylic alcohols has been achieved via an iodine-catalyzed process. This transition-metal-free borylation transformation is compatible with various functional groups and provides a practical and convenient method to access important
Chunyu Yin (6096134), Hua Zhang (12549), Lu Luo (1812304)   +2 more
core   +1 more source

Synthesis of Highly Borylated 2-Boraindanes through Multiple Borylation of Diynes

JACS Au
Boraindanes, composed of aromatic two-dimensional (2D) benzene and saturated three-dimensional (3D) boracycle moieties, are considered promising candidates for bioactive compounds/probes, agents for boron neutron capture therapy, and functional materials, as they combine the photophysical properties of the 2D aromatic and the high molecular recognition
Yuki Nagashima, Mone Suzuki, Takahiro Komaki, Antônio Junio Araujo Dias, Ken Tanaka, Masanobu Uchiyama   +5 more
openaire   +3 more sources

Para-Selective Borylation of Monosubstituted Benzenes Using a Transient Mediator [PDF]

, 2019
Herein, we conceptualized a transient mediator approach that has the capability of para-selective C–H functionalization of monosubstituted aromatics. This approach is enabled by in situ generation of a versatile sulfonium salt via highly electrophilic ...
Yichen, Wu, Peng, Wang, Zengwei, Wang, Xiao-Yue, Chen, Jie, Wu, Qian, Peng, Daoming, Wang   +6 more
core   +2 more sources

Modular One‐Pot Access to π‐Expanded Tetrakis(Phenothiazinyl)‐Silanes With Broadly Tunable Redox and Emission Properties

Chemistry – A European Journal, EarlyView.
A library of 21 tetrakis(phenothiazinyl)‐substituted silanes with broadly variable substituent decoration, which are fully reversible multistage redox systems with intense tunable emission from deep blue to yellow–green (441–533 nm), was rapidly synthesized by bromine–lithium exchange/borylation–Suzuki coupling of tetrakis(4‐bromophenyl)silane or by ...
Thomas P. M. Merke, Lysander Presser, Leonard Karl, Christian Ganter, Thomas J. J. Müller   +4 more
wiley   +1 more source

Benzo[c][1,2,5]Thiadiazole Linkers Enhance the Effectiveness of Cavity‐Containing Supramolecular Photocatalysts

Chemistry – A European Journal, EarlyView.
Seven novel supramolecular photosensitizers based on benzo[c][1,2,5]thiadiazole (BTZ) tethered to calix[4]arene (C[4]) scaffolds are reported with facile, scalable, and selective syntheses. Their abilities to produce singlet oxygen have been tested through the photo‐oxidation of α‐terpinene.
Leonardo Amicosante, Dominic Taylor, Cameron L. Campbell, Daniel M. Lambden, Georgina M. Rosair, Filipe Vilela, Scott J. Dalgarno   +6 more
wiley   +1 more source