Results 91 to 100 of about 65,001 (335)
Advanced Science, EarlyView.A one‐dimensional sp2‐carbon covalent organic framework with spatially segregated redox centers integrates a dual photosensitizing system and a cationic interface for synergistic photocatalysis. The material achieves exceptional palladium recovery (1749 mg g−1) and bisphenol A mineralization (0.1710 min−1) without sacrificial agents, demonstrating ...
Yi‐Ru Chen +9 more
wiley +1 more source
Regioselective bromination of 1,4-naphthoquinones
, 1981 1,4-Naphthoquinones unsymmetrically substituted in the benzenoid ring undergo bromination at the 2- and/or 3-positions. The isomeric composition of the products is strongly influenced by the conditions of bromination, addition of hydrogen bromide ...
GI Feutrill, PG Griffiths, DW Cameron
core +1 more source
Advances in BODIPY Derivatives for Antibacterial Phototherapy
Angewandte Chemie, EarlyView.This review systematically summarizes the design strategies and structure‐activity relationships of BODIPY‐based antibacterial phototherapy, covering molecular engineering of small‐molecule photosensitizers and nanoplatforms, bacterial targeting and carrier design, and discussing the challenges and future perspectives associated with clinical ...
Li Lv +9 more
wiley +2 more sources
A General Synthesis of Bis-indolylpiperazine-2,5-diones
Molecules, 2012 The one-pot synthesis of three dragmacidin derivatives is reported. Sarcosine anhydride (4) is brominated and immediately reacted with the corresponding indole to produce the products, namely 3,6-bis(5′-methoxy-3′-indolyl)-1,4 ...
Christine Whitlock, Stephen Crooke
doaj +1 more source
Photocatalytic Synthesis of Pentafluorosulfanyl Ketones, Acetals, and BCP Motifs Utilizing SF6
Advanced Science, EarlyView.A photocatalytic single electron reduction strategy is reported for the activation and valorization of sulfur hexafluoride (SF6), a potent greenhouse gas. Under mild conditions, SF6 is reduced to generate pentafluorosulfanyl (SF5) radicals, enabling direct access to pentafluorosulfanyl ketones, acetals, and BCP motifs.
Chen‐Hui Jiang +11 more
wiley +1 more source
Low and high temperature bromination of exocyclic dienes: high temperature bromination. Part 16
, 2003 The electrophilic addition of bromine to an exocyclic diene, 5,6-dimethylenebicyclo[2.2.1]hept-2-ene, in CCl4 at 0degreesC led to the formation of non-rearranged (73%) and rearranged products (27%).
Azizoglu, A +4 more
core +1 more source
Angewandte Chemie, EarlyView.Color‐pure all‐organic emitters, i.e., with narrow spectral characteristics, are intensively studied for high‐definition organic LEDs and multi‐color bioimaging. In order to guide targeted materials design, this educative review discusses spectral characteristics, proper definitions and units, and the physical basis of spectral broadening, to distill ...
Johannes Gierschner +6 more
wiley +2 more sources
3,6-Bis(5’-bromo-3’-indolyl)-1,4-dimethypiperazine-2,5-dione
Molbank, 2009 The one-pot synthesis of 3,6-bis(5’-bromo-3’-indolyl)-1,4-dimethylpiperazine- 2,5-dione is reported. Sarcosine anhydride is brominated and immediately reacted with 5-bromoindole to produce the product, which is characterized by 1H NMR, MS and ...
Christine Whitlock +2 more
doaj +1 more source
Advanced Science, EarlyView.An exogenous reagent‐free dual‐substrate strategy harnesses phenol as an intrinsic electron donor to drive synchronous phenol degradation and Cr(VI) reduction over modified carbon nitride. π–π stacking and hydrogen bonding direct electron transfer to the catalyst, enriching photogenerated electrons and accelerating Cr(VI) reduction 6.4‐fold. This waste‐
Xiaoman Zhang +9 more
wiley +1 more source
Towards graphene bromide: bromination of graphite oxide.
Nanoscale, 2014 Halogenated graphene derivatives are interesting for their outstanding physical and chemical properties. In this paper, we present various methods for the synthesis of brominated graphene derivatives by the bromination of graphite oxides. Graphite oxides,
O. Jankovský +6 more
semanticscholar +1 more source