Results 201 to 210 of about 211,120 (337)

Synthesis of spirolactones from carbonyls via carboborylation of N‐sulfonylhydrazones with alkoxycarbonylalkylboronic acids

Advanced Synthesis &Catalysis, Accepted Article.
A straightforward synthesis of spirolactones from carbonyls via N‐tosylhydrazones is described. The process consist in the reaction between the N‐tosylhydrazone and ethoxycarbonylethylboronic acid or ethoxycarbonylpropylboronic acid, leading to spiro γ‐butyrolactones or δ‐valerolactones respectively. The transformation takes place by carboborylation of
Lucía López, Sara Filgueira, María-Paz Cabal, Alfonso Carlos Valdés-Gómez   +3 more
wiley   +1 more source

Prenatal Exposure to Synthetic Phenols Assessed in Multiple Urine Samples and Dysregulation of Steroid Hormone Homeostasis in Two European Cohorts. [PDF]

Environ Health Perspect
Jedynak P, Bustamante M, Rolland M, Mustieles V, Thomsen C, Sakhi AK, Sabaredzovic A, Foraster M, Gascon M, Gómez-Roig MD, Llurba E, Rivas I, Ouellet-Morin I, Bayat S, Lyon-Caen S, Pozo OJ, Vrijheid M, Sunyer J, Slama R, Dadvand P, Philippat C.   +20 more
europepmc   +1 more source

Recent Developments in Radical Mediated Synthesis of Organostannanes.

Advanced Synthesis &Catalysis, EarlyView.
Abstract The present review aims to provide an overview of the recent developments in the preparation of aryl‐ or alkenyl stannanes via carbon‐ and tin‐centered radicals enabling chemists to synthesize organostannyl derivatives with high efficiency and under mild conditions.
Qianhang Ren, Adrian Luguera Ruiz, Maurizio Fagnoni, Stefano Protti, Di Qiu   +4 more
wiley   +1 more source

Gas sensor for 4-ethylguaiacol detection based on tyrosinase enzymatic activity in a deep eutectic solvent. [PDF]

Mikrochim Acta
Portugal-Gómez P, Svigelj R, Zanette F, Toniolo R, Domínguez-Renedo O, Alonso-Lomillo MA.   +5 more
europepmc   +1 more source

Development of Hydrofluoroolefin (HFO)‐Based Direct O‐Fluoroalkenylation of Phenols Targeting Tyrosine Conjugation

Advanced Synthesis &Catalysis, EarlyView.
Abstract Methodology for direct fluoroalkenylation of phenolic OH function was developed using a fluorinated electrophilic reagent derived from HFO1234ze gas. Besides various functionalized phenols, tyrosine and tyrosine‐based peptides were successfully conjugated under the optimized reaction conditions.
Rihárd Sisa, Ferenc Béke, Zoltán Novák   +2 more
wiley   +1 more source

Phenolic Metabolism Explains Bitterness and Pungency of Extra Virgin Olive Oils. [PDF]

Foods
Tomé-Rodríguez S, Barba-Palomeque F, Calderón-Santiago M, Penco-Valenzuela JM, Priego-Capote F.   +4 more
europepmc   +1 more source

C–H Homocoupling of Arenes via Pd/S,O‐Ligand Catalysis

Advanced Synthesis &Catalysis, EarlyView.
An efficient C‐H homocoupling of arenes via Pd/S,O‐ligand catalytic system is reported. This method can be applied to a series of arenes using O2 as oxidant under room temperature and is also applicable for late‐stage homocoupling of pharmaceutical derivatives.
Ke‐Zuan Deng, Sam Pikavet, Paola Riente, María Ángeles Fernández‐Ibáñez   +3 more
wiley   +1 more source

The impact of LED illumination on antioxidant properties of sprouted seeds

Open Life Sciences, 2011
Samuolienė Giedrė, Urbonavičiūtė Akvilė, Brazaitytė Aušra, Šabajevienė Gintarė, Sakalauskaitė Jurga, Duchovskis Pavelas   +5 more
doaj   +1 more source

Total Phenolic, Flavonoid Content, and Antioxidant Activity of Dried Marigold (Tagetes erecta L.) Petals Produced in a Mixed-Mode Solar Dryer. [PDF]

Plant Foods Hum Nutr
Domínguez-Niño A, Guillén-Velázquez P, Santos-González I, García-Valladares O, Vázquez-Morales JM.   +4 more
europepmc   +1 more source

Exploring Gelatin‐A and Mouse Proline‐Rich Protein 5 as Probes for Wine Polyphenol Analysis by Quartz Crystal Microbalance with Dissipation Monitoring

Advanced Sensor Research, EarlyView.
This study presents a novel strategy for the detection of polyphenols in wine. By combining Quartz Crystal Microbalance with Dissipation Monitoring and original functionalization strategies, Gelatin A from porcine skin and Mouse Proline‐Rich Protein 5, polyphenols are successfully detected directly in wine without any prior sample preparation ...
Giorgia Tori, Mariacristina Gagliardi, Francesco Lunardelli, Chiara Sanmartin, Isabella Taglieri, Gianmarco Alfieri, Margherita Modesti, Domenica Convertino, Andrea Bellincontro, Fabio Mencarelli, Marco Cecchini   +10 more
wiley   +1 more source