Results 81 to 90 of about 22,717 (244)
Plant Biology, EarlyView.We demonstrate that Spiculaea ciliata attracts male Thynnoturneria abspiculus through a single semiochemical, identified as 4‐hydroxy‐3‐(methylthio)benzaldehyde, emitted from its labellum. This compound alone elicited sexual behaviours in male wasps comparable to those elicited by whole floral extracts and attracted wasps when presented on a synthetic ...
S. K. van Kints +5 more
wiley +1 more source
, 2019 In the present study, hydroxy-2-methyl-4H-pyran-4-one was isolated from the methanol root extract of Senecio laetus and was identified by FT-IR, 1H, 13C NMR and GC-MS.
Venkatesalu Venugopalan (6885626) +1 more
core +1 more source
Analytical Science Advances, Volume 7, Issue 2, December 2026.The pharmacological potential of the methanolic stem extract of Acampe papillosa is evaluated using in vivo and in silico approaches. The extract demonstrates significant anxiolytic, sedative, anti‐inflammatory, and antipyretic activities in experimental models, while molecular docking supports the observed biological effects through favorable ...
Qurratul Ain Sadia +10 more
wiley +1 more source
, 2016 A novel red-emitting polymer, poly{1,4-phenylenevinylene-(4-dicyanomethylene-4H-pyran)-2,6-vinylene-1,4-phenylenevinylene-2,5-bis(dodecyloxy)-1,4-phenylenevinylene} (PM-PPV), was prepared by the Heck coupling reaction between 2-{2,6-bis[2-(4-bromophenyl ...
Hoosung Lee (2498959) +1 more
core +1 more source
Synthesis of a 4H-anthra[1,2-b]pyran Derivative and its Antimicrobial activity
Natural Product Communications, 2011 The five-step synthesis of the new 4 H -anthra[1,2- b ]pyran derivative 1 is reported. The key steps in this approach included a Marschalk alkylation of 1,4-dihydroxyanthraquinone followed by a Baker–Venkataraman reaction and then an acid-catalyzed ...
Hidayat Hussain +3 more
doaj +1 more source
Stimulation of Antibody Formation by Pyran Copolymer
Experimental Biology and Medicine, 1970 SummaryPyran copolymer, administered with sheep red blood cells to mice, enhances the early rate of appearance of antibody-forming spleen cells. Although the cytotoxicity and pyrogenicity of pyran and bacterial endotoxins are similar, pyran, in contrast to endotoxin, does not trigger a nonspecific initiation of antibody formation; it only enhances ...
W, Braun +3 more
openaire +2 more sources
Pharmacology Research &Perspectives, Volume 14, Issue 6, December 2026.ABSTRACT α1‐Adrenoceptors are an important drug target in benign prostatic hyperplasia (BPH) and have been intensively studied at the expression level, but their posttranslational regulation in the prostate is widely unknown. Here we examined modulation of prostate smooth muscle contractions by inhibitors for RabGTPases, which are involved in ...
Luca Troffer +9 more
wiley +1 more source
, 1996 Substituted alkyl 2-pyran-5-carboxylates have been condensed with arsonium ylides to form substituted vinylcyclopropanecarboxylates and in a number of cases also ...
Moorhoff, CM (15481859)
core
ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.Hierarchically porous, N‐doped freestanding anode enables reversible Na+ insertion/desorption and Na–Co alloying, delivering fast kinetics, structural robustness, and durable sodium‐storage performance even under bending/folding. To develop a green, sustainable, and high‐performance anode for sodium‐ion batteries (SIBs), flexible biomass‐based carbon ...
Yuqiong He +8 more
wiley +1 more source
An ab Initio Theory and Density Functional Theory (DFT) Study of Conformers of Tetrahydro-2H-pyran
, 2016 Ab initio theory with the 3-21G, 6-31G(d), 6-31G(d,p), 6-311G(d,p), 6-31+G(d), and 6-311+G(d,p) basis sets and density functional theory (SVWN, pBP, BLYP), including the hybrid density functional methods B3LYP, B3PW91, and B3P86, have been used to ...
Fillmore Freeman (1622065) +2 more
core +1 more source