Results 31 to 40 of about 4,494 (179)
Smart Molecules, EarlyView.This review elucidates the photophysical mechanisms of cellulose‐based room temperature phosphorescent materials and systematically outlines their construction strategies, such as cluster emission center engineering. This article demonstrates their applications in fields like information encryption and bioimaging, and looks ahead to the core challenges
Shasha Wu +10 more
wiley +1 more source
7-(3-Nitrophenyl)-9,10-dihydro-7H-benzo[h]cyclopenta[b]quinolin-8(11H)-one
Acta Crystallographica Section E, 2011 In the title compound, C22H16N2O3, the naphthalene ring, the 1,4-dihydropyridine ring and the cyclopent-2-enone ring are nearly coplanar, with the dihedral angles between the neighbouring rings being 1.93 (11) and 2.30 (9)° ...
Tuanjie Li, Honghong Zhang
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SIRT Family: Biological Functions and Therapeutic Targets
MedComm, Volume 7, Issue 8, August 2026.SIRT1–SIRT7 networks from transgenic mice to human‑relevant therapeutic targets. SIRT1–SIRT7 form an isoform‑, organ‑, and disease‑specific regulatory network. Transgenic Sirt1–7 mouse models define central regulatory SIRTs (SIRT1, SIRT3, SIRT6), context‑dependent modifiers (SIRT2, SIRT4, SIRT5, SIRT7), and their key mechanisms and target organs. These
Jia‐Yi Wang +9 more
wiley +1 more source
The Chemical Record, Volume 26, Issue 8, August 2026.This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros +5 more
wiley +1 more source
Rearrangement of o-Nitrobenzaldehyde in the Hantzsch Reaction
Molecules, 2001 The reaction of 5-hydroxy-2-nitrobenzaldehyde with ethyl acetoacetate in ammonia gave the two expected isomeric 1,4- and 1,2-dihydropyridines resulting from the normal Hantzsch reaction.
R. MartÃÂnez +7 more
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Chemistry – A European Journal, Volume 32, Issue 28, 25 July 2026.Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley +1 more source
Dimethyl 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate
Acta Crystallographica Section E, 2009 In the crystal of the title compound, C11H15NO4, the molecules are linked into sheets by N—H...O and C—H...O hydrogen bonds.
Zhenfeng Zhang +3 more
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Ethyl 4-oxo-1,4-dihydropyridine-3-carboxylate
IUCrData, 2021 The title compound, C8H9NO3, likely generated through hydrolysis and esterification of 3′-carboxy-3-methyl-(1,4′-bipyridin)-1-ium chloride by ethanol, which contained water, has a nearly planar conformation.
Jun Gao, Sihui Long
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Conformation of 1,4‐dihydropyridine — planar or boat‐like? [PDF]
FEBS Letters, 1988 The geometry of the 1,4‐dihydropyridine molecule was completely optimized employing three different ab initio basis sets (6–31 G*, 4–31 G, STO—3G). The most reliable 6–31G* basis set provides a very flat boat conformation which may easily undergo defolding to a planar ring arrangement.
H. Hofmann, CIMIRAGLIA, Renzo
openaire +2 more sources
A Combined MS/MS and IMS Study Into the Fragmentation Pathway of Nifedipine
Journal of Mass Spectrometry, Volume 61, Issue 7, July 2026.ABSTRACT Collision‐induced dissociation (CID) of small molecules, typically with a molecular mass below 1500 Da, is widely applied for the structural identification of drug metabolites, synthetic by‐products and unknown compounds. Nonetheless, the interpretation of MS/MS spectra derived from protonated or sodiated molecules mainly relies on the ...
Peiliang Han +2 more
wiley +1 more source