Palladium-catalyzed site-selective arylation of aliphatic ketones enabled by a transient ligand
作者:Lei Pan、Ke Yang、Guigen Li、Haibo Ge
DOI:10.1039/c8cc00980e
日期:——
Transition metal-catalyzed direct C–H bond functionalization enabled by transient ligands has become an attractive topic. Here we report a palladium-catalyzed site-selective arylation of β-C(sp3)–H bonds in aliphatic ketones with β-alanine as the transient ligand.
Methylene C(sp<sup>3</sup>)–H Arylation of Aliphatic Ketones Using a Transient Directing Group
作者:Kai Hong、Hojoon Park、Jin-Quan Yu
DOI:10.1021/acscatal.7b02905
日期:2017.10.6
Palladium-catalyzed methylene β-C(sp3)–Harylation of aliphatic ketones using a transient directing group is developed. The use of α-benzyl β-alanine directing group that forms a six-membered chelation with palladium is crucial for promoting the methylene C(sp3)–H bond activation.
[EN] IMIDAZOLINE RECEPTOR TYPE 1 LIGANDS FOR USE AS THERAPEUTICS<br/>[FR] LIGANDS DU RÉCEPTEUR AUX IMIDAZOLINES DE TYPE 1 À UTILISER EN TANT QU'AGENTS THÉRAPEUTIQUES
申请人:RIDEOUT DARRYL
公开号:WO2016105448A1
公开(公告)日:2016-06-30
This disclosure provides compounds and compositions for use as analgesics and for the treatment of various conditions, such as pain, headaches, allodynia, and fibromyalgia. The disclosure also provides compounds that are ligands, and in some embodiments, modulators (e.g., agonists), for the imidazoline receptor type 1.
NHC-stabilized ruthenium nanoparticles as new catalysts for the hydrogenation of aromatics
作者:David Gonzalez-Galvez、Patricia Lara、Orestes Rivada-Wheelaghan、Salvador Conejero、Bruno Chaudret、Karine Philippot、Piet W. N. M. van Leeuwen
DOI:10.1039/c2cy20561k
日期:——
application of rutheniumnanoparticles (RuNPs) stabilized by the N-heterocycliccarbenes (NHC) N,N′-di(tert-butyl)imidazol-2-ylidene (ItBu) and 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene IPr as catalysts in the hydrogenation of several substrates is reported under various reaction conditions (solvent, substrate concentration, substrate/metal ratio, temperature). The RuNHC nanoparticles are active
N-杂环卡宾(NHC)N,N'-二(叔丁基)咪唑-2-亚烷基(I t Bu)和1,3-双(2,6- )稳定的钌纳米颗粒(RuNPs)的应用在各种反应条件(溶剂,底物浓度,底物/金属比,温度)下,报道了在几种底物加氢中作为催化剂的二异丙基苯基)亚咪唑-2-亚烷基IPr。RuNHC纳米粒子是芳烃加氢中的活性催化剂,并表现出有趣的配体效应,RuIPr NPs通常比RuI t Bu具有更高的活性。
Compound Combinations for Attenuation of Bacterial Virulence
申请人:WISCONSIN ALUMNI RESEARCH FOUNDATION
公开号:US20170231962A1
公开(公告)日:2017-08-17
Methods for modulating quorum sensing in certain Gram-negative bacteria having multiple QS systems including Las, Rhl, and Pqs with associated receptors (LasR, RhlR and PqsR) which are modulated by small molecule modulators, particularly non-native modulators. Certain combinations of modulators of Las, Rhl and Pqs exhibit improved inhibition of virulence in comparison to the respective individual modulators. In particular, certain combinations of modulators exhibit improved inhibition in nutritionally depleted environments. More specifically, certain combinations of modulators exhibit improved inhibition in environments depleted in phosphate and/or environments depleted in iron. Nutrient depleted environments can mimic environments associated with bacterial infection in humans and non-human animals. The methods are useful in particular for modulating QS in
Pseudomonas
and
Buckholderia.