Reactive trityl derivatives: stabilised carbocation mass-tags for life sciences applications [PDF]
, 2008 The rational design of novel triarylmethyl (trityl)-based mass tags (MT) for mass-spectrometric (MS) applications is described. We propose a "pKR+ rule" to correlate the stability of trityl carbocations with their MS performance: trityls with higher pKR+
Astakhova, Irina Kira +14 more
core +2 more sources
DDQ/PbO2: a Novel Oxidation System for Hindered Electron Rich Benzhydrols
Molecules, 2000 A convenient mild protocol for oxidation of highly hindered electron rich benzhydrols using DDQ / PbO2 has been developed.
G. P. Kalena, S. M. Jadhav, A. Banerji
doaj +1 more source
An improved and general synthesis of monomers for incorporating trityl linker groups into polystyrene synthesis supports [PDF]
, 2004 A straightforward synthesis of trityl alcohols in which one of the aryl rings is substituted with a vinyl group is presented. The synthesis of the alcohols involves the direct addition of the Grignard reagent prepared from 4-bromostyrene to substituted ...
Choi, MKW, Toy, PH
core +1 more source
Recent Advances in Chemical Biology Using Benzophenones and Diazirines as Radical Precursors
Molecules, 2020 The use of light-activated chemical probes to study biological interactions was first discovered in the 1960s, and has since found many applications in studying diseases and gaining deeper insight into various cellular mechanisms involving protein ...
M. M. Hassan, Olasunkanmi O. Olaoye
semanticscholar +1 more source
Isoenzyme- and Allozyme-Specific Inhibitors: 2,20-Dihydroxybenzophenones and Their Carbonyl N-Analogues that Discriminate between Human Glutathione Transferase A1-1 and P1-1 Allozymes [PDF]
, 2015 The selectivity of certain benzophenones and their carbonyl N-analogues was investigated towards the human GSTP1-1 allozymes A, B and C involved in MDR. The allozymes were purified from extracts derived from E.
Clonis, Yannis D. +5 more
core +1 more source
Chlorination and chloramination of benzophenone-3 and benzophenone-4 UV filters
Ecotoxicology and Environmental Safety, 2018 The objective of this research was to explore the fundamental reactions between chlorine/chloramine and 2-hydroxyl-4-methoxyl benzophenone (BP3)/2-hydroxyl-4-methoxyl benzophenone-sulfonic acid (BP4), which were the most common reactions in benzophenone-type UV filters during drinking water treatment processes.
Peizeng, Yang +5 more
openaire +2 more sources
Transition-metal-free trifluoromethylthiolation–acylation of arynes by insertion into the C–S bonds
Green Synthesis and Catalysis, 2021 An efficient procedure to access to ortho-SCF3 substituted benzophenones from arynes and trifluoromethylthioesters has been developed under transition-metal free conditions. This difunctionalization process involves the first insertion of arynes into the
Chengyao Kimmy Cao +2 more
doaj +1 more source
N‐heterocyclic carbene catalyzed photoenolization/Diels–Alder reaction of acid fluorides [PDF]
, 2019 The combination of light activation and N‐heterocyclic carbene (NHC) organocatalysis has enabled the use of acid fluorides as substrates in a UVA‐light‐mediated photochemical transformation previously observed only with aromatic aldehydes and ketones ...
Agrawal, Arush +6 more
core +1 more source
Magnetic Polyamide Nanocomposites for the Microextraction of Benzophenones from Water Samples
Molecules, 2019 In this article, the influence of the monomers on the extraction efficiency and the effect of the addition of surfactants during the synthesis have also been considered.
Hoda Ghambari +4 more
doaj +1 more source
Machine Learning Accelerates Crystallization for Structure Determination
Angewandte Chemie, EarlyView.Single‐crystal X‐ray diffraction (SCXRD) is often constrained by the difficulty of obtaining suitable crystals. Here, a machine learning‐accelerated co‐crystal discovery workflow is established for a crystalline mate strategy that achieves over 95% prediction accuracy and experimentally delivers 114 co‐crystals from 120 candidates.
Cui‐Zhou Luan +10 more
wiley +2 more sources