Results 31 to 40 of about 9,191 (227)
MoleculesTwo bis-cyclometalated heteroleptic iridium complexes incorporating 1-phenylisoquinoline (piq) as the main cyclometalating ligand and 3-hydroxy-2-methyl-4-pyrone (ma) or 2-ethyl-3-hydroxy-4H-pyran-4-one (ema) as the auxiliary ligand, namely Ir(piq)2(ma) (
Wen Jiang +6 more
doaj +1 more source
Results in Chemistry, 2021 A cascade Diels-Alder reaction coupled with an oxidative aromatization reaction was developed and applied to a chiral 2-pyrone for the synthesis of the relevant chiral synthon/chiral auxiliary (-)-cis-aminoindan-2-ol.
Arturo de la Rosa-Barrales +6 more
doaj +1 more source
, 2016 3,5-Dibromo-2-pyrone underwent facile Pd(0)-catalyzed coupling reactions with various alkynes to give rise to the corresponding 3-alkynyl-5-bromo-2-pyrones with good to excellent chemical yields and ...
Jung-Sang Park (3030399) +2 more
core +1 more source
The role of substituents in retro Diels-Alder extrusion of CO2 from 2(H)-pyrone cycloadducts [PDF]
, 2016 An experimental and computational investigation is conducted into the role of substituents in retro Diels–Alder extrusion of CO2 from 2-oxa-bicyclo[2.2.2]oct-5-en-3-ones.
Abdullahi, Mohamed H. +9 more
core +1 more source
Deodarone Isomers in Essential Oils and Tar Oils
Natural Product Communications, 2015 Deodarone [2,2,6-trimethyl-6-(4-methylcyclohex-3-enyl)-tetrahydro-4-pyrone] is a sesquiterpene tetrahydro-γ-pyrone related to bisabolene and atlantone, first isolated from Cedrus deodora essential oil.
Anne Marie Nam +5 more
doaj +1 more source
Synthesis of cyercenes and yangonin by a pyrone aldol protocol
Results in Chemistry, 2021 A number of 6-alkenyl pyrones were synthesized using an aldol reaction followed by a tosylate elimination sequence.
Kyle Podolak, George A. Kraus
doaj +1 more source
European Journal of Organic Chemistry, EarlyView.Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxaline with a mesityl group as a solubilizing group was synthesized. By synthesizing derivatives in which various functional groups were introduced into two electronically distinct sites, the pyrrole nitrogen atom and the azulene five‐membered ring, we were able to reveal that the photophysical and electrochemical ...
Ryuta Sekiguchi +6 more
wiley +1 more source
Marine Drugs, 2017 Intensive study of the organic extract of the marine-derived bacterium Saccharomonospora sp. CNQ-490 has yielded three new α-pyrones, saccharomonopyrones A–C (1–3).
Chae-Yoon Yim +12 more
doaj +1 more source
Phytotherapy Research, EarlyView.Overview of the therapeutic potential of flavonoids in nasal delivery systems, highlighting their benefits to the human nasal cavity, and applications in the treatment of respiratory and brain‐related diseases. ABSTRACT Flavonoids represent a significant group of secondary metabolites.
Jeniffer Viviana Ramirez Hernández +5 more
wiley +1 more source
η1-Bound 2-Pyrone Complexes of Molybdenum and Iron: A Synthetic and Structural Study
, 2016 Oxidative cleavage of the [Mo(CO)3(η5-C5H5)]2 with AgBF4 in the presence of 4-methoxy-6-methyl-2-pyrone or 3-bromo-4-methoxy-6-methyl-2-pyrone results in the formation of and respectively. Single-crystal X-ray diffraction studies have demonstrated that
Jason M. Lynam (1364136) +3 more
core +2 more sources