Results 51 to 60 of about 14,691 (260)
Synthesis of 5,6-dihydro-2H-pyran-2-ones (microreview) [PDF]
, 2016 [Figure not available: see fulltext.][Figure not available: see fulltext.] 5,6-Dihydro-2H-pyran-2-ones constitute an important class of heterocyclic compounds which also may be considered as α,β-unsaturated δ-lactones.
Eskandari, K., Rafieian-Kopaei, M.
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International Journal for Parasitology: Drugs and Drug Resistance, 2019 Due to the widespread occurrence and spread of anthelmintic resistance, there is a need to develop new drugs against resistant parasitic nematodes of livestock animals.
H.M.P. Dilrukshi Herath +12 more
doaj +1 more source
Humic acid from Shilajit – a physico-chemical and spectroscopic characterization [PDF]
, 2009 Shilajit is a blackish–brown exudation, consisting of organic substances, metal ions and minerals, from different formations, commonly found in the Himalayan region (1000–3000 m) from Nepal to Kashmir.
ASGAR ALI +4 more
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Marine Drugs, 2022 With the increasingly serious antimicrobial resistance, discovering novel antibiotics has grown impendency. The Antarctic abundant microbial resources, especially fungi, can produce unique bioactive compounds for adapting to the hostile environment.
Ting Shi +6 more
doaj +1 more source
Characterization of volatile secondary metabolites from Trichoderma asperellum [PDF]
, 2017 Many Trichoderma isolates are known to secrete several secondary metabolites with different biological activities towards plants and other microbes. The production of such compounds varies according to the strain. In the present study, volatile secondary
Bhardwaj, Nitish Rattan, Kumar, J.
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Structure determination of a 4-pyrone from the liverwort Plagiochila bifaria (Sw.) Lindenb. (Plagiochilaceae) [PDF]
, 2008 The centenary of the presentation in 1907 of the "polyketide" hypothesis by Collie, along with his use of a 4-pyrone as an example, is marked by reporting the discovery and isolation of 2-(3,4-dimethoxyphenethyl)-6-methyl-4-pyrone from <i> ...
Rycroft, D.S.
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Chemistry – A European Journal, EarlyView.Three 2‐phosphinophenylaluminum dichloride complexes were synthesized and characterized as novel intramolecular FLPs. These FLP systems exhibit high Lewis acidity and effectively activate challenging substrates including aliphatic ketones, imines, and esters. DFT analysis revealed that strain release and Al–P dynamics govern their reactivity. Abstract (
Yoshihiro Nishimoto +2 more
wiley +1 more source
Fupyrones A and B, two new α-pyrones from an endophytic fungus, Fusarium sp. F20
Natural Product Research, 2019 Two new α-pyrones, fupyrones A and B (1 and 2) and a biosynthetically related known α-pyrone, 4-methyl-5,6-dihydro-2H-pyran-2-one (3), were isolated from an endophytic fungus, Fusarium sp. F20, harbored in the stems of the Chinese medicinal plant Mahonia
Han Gao, Gang Li, Xiaoping Peng, H. Lou
semanticscholar +1 more source
Production and characterization of activated carbons made from sunflower stems [PDF]
, 2012 Activated carbons (ACs) are artificial materials, prepared from natural or synthetic precursors that are worldwide extensively used. The ACs main characteristics are the noticeable adsorption capabilities provided by the highly developed porous structure
Carrott, Peter +3 more
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Push–Pull Ynamines and Push–Pull Ynamides: Synthesis, Structure, Reactivity, and Application
European Journal of Organic Chemistry, EarlyView.Push–pull ynamines and push–pull ynamides, which carry an EWG and an amino or amido group as EDG, are highly interesting classes of EDG‐EWG alkynes that have been intensively studied due to their exceptional reactivity. In this review, the synthesis, structure, reactivity, and application of push–pull ynamines, push–pull ynecarbamates, push–pull ...
Hans‐Joachim Gais
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