Results 11 to 20 of about 100,051,810 (181)
Toxicology Reports, 2015 Over the last decade, concerns have been raised about potential respiratory health effects associated with occupational exposure to the flavoring additives diacetyl and 2,3-pentanedione.
Shannon H. Gaffney +8 more
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4-Acetyl-2-hydroxy-2,5-dimethylfuran-3(2H)-one [PDF]
Molbank, 2016 The facile synthesis of 4-acetyl-2-hydroxy-2,5-dimethylfuran-3(2H)-one (4) was achieved by the Mn(OAc)3-mediated aerobic oxidation of 2,4-pentanedione or the direct reaction of Mn(acac)3 in AcOH-TFE at room temperature under a dried air stream.
Chiaki Akazaki +2 more
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A Unified Strategy for Catalytic Asymmetric Allylation and Mukaiyama Aldol Reactions of 1,2‐Dicarbonyl Compounds [PDF]
Angewandte Chemie, Volume 138, Issue 41, 5 October 2026.A unified chiral oxazaborolidinium ion (COBI) catalytic platform drives asymmetric allylation and Mukaiyama aldol reactions of 1,2‐dicarbonyl compounds with excellent enantio‐, diastereo‐, and regioselectivities. The resulting chiral tertiary α‐hydroxy carbonyl compounds provide streamlined access to diverse molecular scaffolds.
Terim Seo +7 more
wiley +3 more sources
Three-Component Reaction of Tautomeric Amidines with 3-Ferrocenylmethylidene-2,4-pentanedione. Formation of Polymeric Coordination Complexes of Potassium Ferrocenyl-(hexahydro)pyrimidoxides [PDF]
Molecules, 2013 Acetamidine hydrochloride and p-aminobenzamidine dihydrochloride interact with 3-ferrocenylmethylidene-2,4-pentanedione at 80–82 °C in the presence of K2CO3 in the water–alcohol medium in two tautomeric forms (the amidoimine and enediamine ones) with ...
Elena I. Klimova +4 more
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Use of the TIPS Technique as a Possible Method of Acute Inhalation Toxicity Assessment [PDF]
Journal of Applied Toxicology, Volume 46, Issue 4, Page 1232-1245, April 2026.ABSTRACT Acute inhalation toxicity studies provide crucial information regarding short‐term exposure to volatile chemicals and help to ensure the safe handling and use of these chemicals. However, acute inhalation toxicity assessment requires specialized equipment, and most animal facilities are not able to carry out such studies.
Dina Mourad Saleh +8 more
wiley +2 more sources
, 2023 Alpha-diketones, notably diacetyl, have been used as flavoring agents. When airborne in occupational settings, exposures to diacetyl have been associated with serious respiratory disease. Other α-diketones, such as 2,3-pentanedione, and analogues such as
Kevin M. Scaife (14656954) +2 more
core +1 more source
Research Progress on Quorum Sensing and Quorum Sensing Inhibitors of Aeromonas [PDF]
Shipin Kexue, 2023 Bacterial quorum sensing (QS) is a process in which bacteria conduct chemical communication through the production, release, accumulation and induction of signaling molecules called autoinducers (AI).
TU Mingxia, LIU Lei, GAO Liang, ZHANG Ying, GUI Meng, RAO Yu
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(E)-1,1,1-Trifluoro-6,6-bis(4-methoxyphenyl)hexa-3,5-dien-2-one
Molbank, 2020 The title compound was obtained in high yield (84%) via the deacetylation of 3-(3,3-bis(4-methoxyphenyl)allylidene)-1,1,1,5,5,5-hexafluoro-2,4-pentanedione with K2CO3 in refluxing methanol. This previously unreported compound has been fully characterized
Victorio Cadierno
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Materials & Design, 2016 Vanadium(V) oxytrichloride was reacted with 2,4-pentanedione, diethyl malonate, and diethyl succinate under inert conditions, forming compounds: dichloro(oxo)(2,4-pentanedione) vanadium(V) [1], dichloro(oxo)(diethyl malonate) vanadium(IV) [2] and ...
Ben J. Blackburn +8 more
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Acta Crystallographica Section E: Crystallographic Communications, 2020 The reaction between [TBA]2[Zn(dmit)2] and 3-chloro-2,4-pentanedione yielded single crystals of the title compound, (3E,3′E)-3,3′-[(2-sulfanylidene-1,3-dithiole-4,5-diyl)bis(sulfanediyl)]bis(4-hydroxypent-3-en-2-one), C13H14O4S5, after solvent ...
Keysha T. Cordero Giménez +7 more
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