Results 1 to 10 of about 993 (189)

Isocoumarin Synthesis via Metal-Free C-Arylation of Acetoacetates with ortho-Ester-Functionalized Diaryliodonium Salts [PDF]

Molecules
In this study, a metal-free approach was developed for the synthesis of isocoumarin frameworks by exploiting the reactivity between ortho-carboxylate-ester-substituted diaryliodonium salts and acetoacetates.
Elghareeb E. Elboray, Daichi Kashiwagi, Kotaro Kikushima, Mihoyo Fujitake, Toshifumi Dohi   +4 more
doaj   +2 more sources

Comparison of two diagnostic methods through blood and urine sample analyses for the detection of ketosis in cattle [PDF]

Veterinary World, 2022
Background and Aim: Several Ecuadorian farms use human test strips (cheaper than veterinary strips) to diagnose bovine ketosis; however, their reliability is unknown. This study aimed to determine the confidence level of human strips for the detection of
Karla Verónica Borja, Andrés Miguel Amador, Silvana Hipatia Santander Parra, Cristian Fernando Cárdenas, Luis Fabian Núñez   +4 more
doaj   +1 more source

Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones [PDF]

Journal of the Serbian Chemical Society, 2001
A number of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones from cyanoacetamide and the corresponding alkyl ethyl acetoacetates were synthesized according to modified literature procedures. The alkyl ethyl acetoacetates were obtained by the
Mijin Dušan Ž., Ušćumlić Gordana S., Valentić Nataša V.   +2 more
doaj   +3 more sources

Lithium and Not Acetoacetate Influences the Growth of Cells Treated with Lithium Acetoacetate [PDF]

International Journal of Molecular Sciences, 2019
The ketogenic diet (KD), a high-fat/low-carbohydrate/adequate-protein diet, has been proposed as a treatment for a variety of diseases, including cancer. KD leads to generation of ketone bodies (KBs), predominantly acetoacetate (AcAc) and 3-hydroxy-butyrate, as a result of fatty acid oxidation. Several studies investigated the antiproliferative effects
Vidali, Silvia, Aminzadeh-Gohari, Sepideh, Vatrinet, Renaud, Iommarini, Luisa, Porcelli, Anna Maria, Kofler, Barbara, Feichtinger, René Günther   +6 more
openaire   +4 more sources

Acetoacetate and ethyl acetoacetate as novel inhibitors of bacterial biofilm [PDF]

Letters in Applied Microbiology, 2018
Acetoacetate (AAA) was identified as a biofilm inhibitor in a previous study, where the effect of 190 carbon and nitrogen sources on biofilm amounts by Escherichia coli O157:H7 was determined. With this study, we tested the effect of AAA on growth and biofilm amounts of Cronobacter sakazakii, Serratia marcescens and Yersinia enterocolitica. AAA reduced
S M, Horne, M, Schroeder, J, Murphy, B M, Prüβ   +3 more
openaire   +2 more sources

Elevated blood acetoacetate levels reduce major adverse cardiac and cerebrovascular events risk in acute myocardial infarction

Open Medicine, 2023
Although elevated blood ketone body levels reduce major adverse cardiac and cerebrovascular events (MACCEs) risk in chronic heart failure, their relationship with acute myocardial infarction remains unknown.
Sato Jun, Kinoshita Kosaku, Sakurai Atsushi   +2 more
doaj   +1 more source

Wood pulp industry by-product valorization for acrylate synthesis and bio-based polymer development via Michael addition reaction

Journal of Bioresources and Bioproducts, 2023
It is crucial to adapt the processing of forest bio-resources into biochemicals and bio-based advanced materials in order to transform the current economic climate into a greener economy.
Ralfs Pomilovskis, Eliza Kaulina, Inese Mierina, Arnis Abolins, Olga Kockova, Anda Fridrihsone, Mikelis Kirpluks   +6 more
doaj   +1 more source

Ultrasound-assisted aqua-mediated synthesis of multi-substituted tetrahydropyridine-3-carboxylates using N-carboxymethyl-3-pyridinium hydrogensulfate ([N-CH2CO2H-3-pic]+HSO4 −) as a new efficient ionic liquid catalyst

SN Applied Sciences, 2021
A simple, straightforward, and ultrasound-promoted method for the preparation of some highly functionalized tetrahydropyridines reported via pseudo five-component reaction of (hetero)aromatic aldehydes, different anilines, and alkyl acetoacetates in the ...
Kobra Nikoofar, Fatemeh Shahriyari
doaj   +1 more source

The Conversion of Acetoacetate to Pyruvaldehyde

Journal of Biological Chemistry, 1967
Abstract The oxidative decarboxylation of acetoacetate to pyruvaldehyde is catalyzed by sheep heart extracts in the presence of O2 and Mn2+. The product was identified by spectral and chromatographic methods. From fractionation and inhibitor characteristics and the similarity of the catalytic activity to that of commercial myoglobin, it is concluded ...
L P, Milligan, R L, Baldwin
openaire   +2 more sources

Controlling Photochromism of Donor‐Acceptor Stenhouse Adducts on Micro‐Dot Arrays Beyond Human‐Eyes Resolution for Dynamic Light Encryption

Advanced Science, EarlyView.
This study presents a micro‐dot array strategy for dynamic light encryption, utilizing DASA‐based photochromism with resolution beyond human‐eye capacity. By precisely controlling isomerization kinetics, the method reveals multi‐layered encrypted information under specific light irradiation, enhancing information security and anti‐counterfeiting ...
Hongtao Hu, Fanxi Sun, Hanjun Zhang, Xiao Wang, Gaolu Zhu, Jiayu Li, Mengyao Yang, Xu Deng, Yonghao Zheng, Chen Wei, Dongsheng Wang   +10 more
wiley   +1 more source