Results 101 to 110 of about 95,737 (296)

Iminium Salts by Meerwein Alkylation of Ehrlich’s Aldehyde

Crystals, 2013
4-(Dimethylamino)benzaldehyde is alkylated at the N atom by dialkyl sulfates, MeI, or Me3O BF4. In contrast, ethylation by Et3O BF4 occurs selectively at the O atom yielding a quinoid iminium ion.
Gerhard Laus, Herwig Schottenberger, Volker Kahlenberg, Hedda K. Weber, Carmen Froschauer   +4 more
doaj   +1 more source

Excited state properties of [Pd0(NHC)(quinone)]2 with NHC=1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene and quinone=1,4-naphthoquinone

, 2005
The carbene complex [Pd-0(NHC)(quinone)](2)with NHC = 1,3-bis(2,4,6-trimethylphenyl)-imidazol-2-ylidene and quinone = 1,4-naphthoquinone shows two long-wavelength absorptions at 312 and 399 nm which are assigned to (NHC -> quinone) LLCT and (Pd-0 ...
Vogler, Arnd, Kunkely, Horst
core   +1 more source

Restoring Endothelial Mitochondrial Homeostasis With a Bioactive Nanoshield Promotes Vascular Regeneration on Cardiovascular Implants

Advanced Science, EarlyView.
A bioactive poly(citrate‐polyglycol‐procyanidin) (PCGP) nanoshield is developed for cardiovascular implants to restore endothelial mitochondrial homeostasis following vascular injury. By preserving mitochondrial integrity, re‐establishing metabolic balance, and activating PI3K/Akt/eNOS‐NO signaling, the PCGP interface promotes functional endothelial ...
Xiyu Liu, Wen Zhang, Lunxin Liu, Lan Gui, Yumei Qin, Xiaohui Yang, Longjian Zhang, Chaohua Wang, Jinpeng Hu, Gaoyang Guo, Qing Jiang, Jin Wang, Li Yang, Bo Zhang, Yunbing Wang   +14 more
wiley   +1 more source

Synthesis and Characterization of Chemically Stable N7-dG Estrone and Catechol Adducts

Molecules
Endogenous estrogens are implicated in carcinogenesis through both estrogen receptor-mediated cell proliferation and the direct genotoxicity of reactive metabolites. Oxidative metabolism of estrogens produces catechol estrogens that are further converted
Philip T. Baily, Seongmin Lee
doaj   +1 more source

Crystal structures of the polymer precursors 3-(2,5-dimethoxy-3,4,6-trimethylphenyl)propyl methacrylate and 3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dienyl)propyl methacrylate

Acta Crystallographica Section E: Crystallographic Communications, 2017
The closely related title compounds, 3-(2,5-dimethoxy-3,4,6-trimethylphenyl)propyl methacrylate, C18H26O4 (I), and 3-(2,4,5-trimethyl-3,6-dioxocyclohexa-1,4-dienyl)propyl methacrylate, C16H20O4 (II), are monomers suitable for the preparation of redox ...
Shailesh K. Goswami, Lyall R. Hanton, C. John McAdam, Stephen C. Moratti, Jim Simpson   +4 more
doaj   +1 more source

Phosphodiester Alkylation with a Quinone Methide

, 2016
Despite the wide array of studies involving DNA alkylation and cleavage with quinone methide generating compounds, there have been no reports on the alkylation of phosphodiesters with quinone methides.
Kenneth D. Turnbull (3047046), Qibing Zhou (109189)   +1 more
core   +1 more source

Synthetic Shewanella‐Bacillus Microbial Consortia for Enhanced Metal Oxide Leaching From Spent Lithium‐Ion Batteries Using Brewing Wastewater as Leaching Agent

Advanced Science, EarlyView.
A recycling approach of spent lithium‐ion batteries is developed using brewing wastewater as the leaching agent and an engineering microbial consortium as the biocatalyst. Shewanella oneidensis reduces spent LiNixCoyMn1‐x‐yO2 cathodes via extracellular electron transfer, while Bacillus subtilis removes residual ethanol to eliminate inhibition.
Baocai Zhang, Chunxiao Qiao, Huichun Liu, Yiyun Wang, Yan Liu, Huan Yu, Junqi Zhang, Chao Li, Deguang Wu, Qulai Tang, Zhiwen Wang, Danni Zhang, Dake Xu, Feng Li, Hao Song   +14 more
wiley   +1 more source

LC-MS parameters for each quinone.

, 2019
LC-MS parameters for each quinone.
Fernando Rodriguez-Perez (6719111), Alysha D. L. Brunsch (6719114), Monica M. Schroll (3769075), Matthew C. Owen (6719117), Benjamin R. Titus (6719105), Jennifer N. Shepherd (3041403), Jeff D. Cronk (6719120), Madeline R. Kuenzi (6719108), Kirk R. Anders (699883), Amanda R. M. Campbell (6719102)   +9 more
core   +1 more source

SIRT5‐Mediated Desuccinylation of ACAA2 Protects Against Calcium Oxalate‐Induced Kidney Injury by Regulating Fatty Acid Oxidation to Suppress Mitochondrial Oxidative Injury and Ferroptosis

Advanced Science, EarlyView.
The SIRT5/ACAA2 axis maintains lipid metabolic homeostasis in RTECs by promoting ACAA2 desuccinylation and preserving its stability and enzymatic activity, thereby sustaining FAO and limiting PUFA and PUFA‐containing phospholipid accumulation. Under CaOx stress, SIRT5 downregulation impairs FAO, promotes oxidative stress and ferroptosis, and enhances ...
Qinhong Jiang, Caitao Dong, Yuchen Liu, Yuanquan Lou, Wenlong Lin, Sheng Li, Ziqi He   +6 more
wiley   +1 more source

Sorgoleone: benzoquinona lipídica de sorgo com efeitos alelopáticos na agricultura como herbicida

Arquivos do Instituto Biológico
A cultura do sorgo cresceu rapidamente nestes últimos anos, por ser uma planta com características xerófilas, apresentando um aumento de sua produção principalmente na região nordeste devido a sua capacidade de suportar ambientes de cultivo mais secos ...
I.L.V.L. Santos, C.R.C. da Silva, S.L. dos Santos, M.M.D. Maia   +3 more
doaj