Results 11 to 20 of about 49,414 (256)

Electrochemical bromolactonization of alkenoic acids with carbon tetrabromide: Synthesis of bromomethylated γ-lactones

open access: yes, 2022
Electrochemical radical bromination and cyclization sequences of alkenoic acids developed in this study. This approach is environmental-friendly by using carbon tetrabromide as a bromine radical precursor. The electrochemical protocol offers a facile way
Kyeong Seop Kim (12088131)   +1 more
core   +1 more source

Activation of Munc13‑1 by Diacylglycerol (DAG)-Lactones

open access: yes, 2023
Munc13-1 is a key protein necessary for vesicle fusion and neurotransmitter release in the brain. Diacylglycerol (DAG)/phorbol ester binds to its C1 domain in the plasma membrane and activates it.
Youngki You (3325497)   +11 more
core   +1 more source

The Castagnoli–Cushman Reaction

open access: yesMolecules, 2023
Since the first reports of the reaction of imines and cyclic anhydrides by Castagnoli and Cushman, this procedure has been applied to the synthesis of a variety of lactams, some of them with important synthetic or biological interest.
José Luis Ramiro   +4 more
doaj   +1 more source

Potential of Slime Molds as a Novel Source for the Cosmetics Industry

open access: yesCosmetics, 2022
Nowadays, the flourishing development of modern cosmetics, and of “green cosmetics” especially, leads to rapid product innovation, with the increasing use of novel natural ingredients from unusual sources.
Maya Stoyneva-Gärtner   +4 more
doaj   +1 more source

Synthesis and Cytotoxic Activity of Some 3-Benzyl-5-Arylidenefuran-2(5H)-ones

open access: yesMolecules, 2007
3-Benzyl-furan-2(5H)-one (2a) and 3-(4-bromobenzyl)-furan-2(5H)-one (2b) were treated with TBDMSOTf and converted into the corresponding tert-butyldimethyl-silylfuran ethers.
Manoel Odorico Moraes   +7 more
doaj   +1 more source

Fabricated Gamma-Alumina-Supported Zinc Ferrite Catalyst for Solvent-Free Aerobic Oxidation of Cyclic Ethers to Lactones

open access: yesMolecules, 2023
The aim of this work was to fabricate a new heterogeneous catalyst as zinc ferrite (ZF) supported on gamma-alumina (γ-Al2O3) for the conversion of cyclic ethers to the corresponding, more valuable lactones, using a solvent-free method and O2 as an ...
Naaser A. Y. Abduh   +4 more
doaj   +1 more source

Formation of carboxylic acids during degradation of monosaccharides

open access: yesCzech Journal of Food Sciences, 2008
The formation of low molecular carboxylic and hydroxycarboxylic acids as well as sugar and deoxysugar acids from monosaccharides (D-glucose, D-fructose, D-arabinose, DL-glyceraldehyde, and 1,3-dihydroxyacetone) was studied in three different model ...
Ondřej Novotný   +2 more
doaj   +1 more source

Desymmetrization of deiesters and dinitriles to synthesize enantioenriched lactones [PDF]

open access: yes, 2020
Many significant bioactive compounds contain quaternary or fully substituted chiral centers. The stereoselective synthesis of these compounds is challenging, yet highly desired because quaternary chiral centers are an important framework in biologically ...
Kelley, Amber M.   +1 more
core  

Systematic investigations on the reduction of 4-aryl-4-oxoesters to 1-aryl-1,4-butanediols with methanolic sodium borohydride

open access: yesBeilstein Journal of Organic Chemistry, 2010
4-Aryl-4-oxoesters undergo facile reduction of both the keto and the ester groups with methanolic NaBH4 at room temperature to yield the corresponding 1-aryl-1,4-butanediols whereas 4-alkyl-4-oxoesters furnish the corresponding 1,4-butanolides via ...
Subrata Kumar Chaudhuri   +3 more
doaj   +1 more source

Lactones from the Sponge-Derived Fungus Talaromyces rugulosus

open access: yesMarine Drugs, 2017
The marine-derived fungus Talaromyces rugulosus isolated from the Mediterranean sponge Axinella cannabina and cultured on solid rice medium yielded seventeen lactone derivatives including five butenolides (1–5), seven (3S)-resorcylide derivatives (6–12),
Lisa Küppers   +12 more
doaj   +1 more source

Home - About - Disclaimer - Privacy