Results 191 to 200 of about 17,511 (250)

Mechanisms, Design Principles, and Emerging Strategies in Supramolecular Assembly‐Enabled Circularly Polarized Room‐Temperature Phosphorescence

Aggregate, Volume 7, Issue 6, June 2026.
The Graphical Abstract summarizes the key concepts of this review, covering supramolecular assembly strategies, CPP material integration, multicolor emission, information encryption, and flexible optoelectronic applications. ABSTRACT Circularly polarized luminescence (CPL) and room‐temperature phosphorescence (RTP) materials are crucial for advanced ...
Wei Zhang, Jiang‐Hai Li, Mao‐Qin Liu, Zheng‐Mei Cheng, Ye Meng, Yang Luo, Jin‐Liang Zhuang   +6 more
wiley   +1 more source

One-Pot Bioisosteric Replacement of Alkyl Carboxylic Acids via Organic Photoredox Catalysis. [PDF]

Org Lett
Haney BA, Merriman MT, Qian S, Nicewicz DA.   +3 more
europepmc   +1 more source

Enantioselective C(sp³)-H bond functionalization enabled by Cp ^<i>x</i> M(iii) catalysis (M = Co, Rh, Ir). [PDF]

Chem Sci
Mou SB, Luo MP, Fang F, Cao S, Wu D, Wang SG.   +5 more
europepmc   +1 more source

Azide‐to‐Diazo Transformation Facilitated by Michael Addition via Phosphazide Formation

Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.
A new type of Michael addition based on azide‐to‐diazo conversion is disclosed. This unusual transformation proceeds via 1,4‐addition accompanied by N─N bond cleavage of phosphazide intermediates under practical conditions. The high versatility of the resulting Michael adducts enables the synthesis of a wide variety of organonitrogen compounds ...
Tomoki Mano, Takahiro Yasuda, Gaku Orimoto, Suguru Yoshida   +3 more
wiley   +1 more source

Discovery of 7-(Pyridin-3-yl)thieno[3,2-<i>b</i>]pyridine-5-carboxamides as Negative Allosteric Modulators of Metabotropic Glutamate Receptor Subtype 5. [PDF]

ACS Chem Neurosci
Henderson SH, Ringuette AE, Whomble DL, Capstick RA, Richardson AE, Maurer MA, Billard NB, Lei X, Wilkinson JC, Kethanapalli SH, Cho HP, Rodriguez AL, Niswender CM, Peng W, Rook JM, Chang S, Blobaum AL, Boutaud O, Felts AS, Conn PJ, Lindsley CW, Temple KJ.   +21 more
europepmc   +1 more source

Convergent Total Synthesis of 16β‐Hydroxylpseudobufarenogin

Angewandte Chemie, Volume 138, Issue 23, 1 June 2026.
We present a novel convergent strategy that integrates Pd/Ag‐promoted Suzuki–Miyaura coupling with Ir‐catalyzed radical‐relay cyclization, enabling the first total synthesis of 16β‐hydroxylpseudobufarenogin. This approach is broadly applicable to the total synthesis of various oxygenated bufadienolides by simply modifying the fragment structures ...
Wataru Shigematsu, Yo Matsumoto, Koichi Hagiwara, Masayuki Inoue   +3 more
wiley   +1 more source

Some of the next articles are maybe not open access.

Related searches:

HYDROGEN BONDING OF PYRIDINE-CARBOXYLIC ACIDS IN SOLIDS

Chemistry Letters, 1973
Abstract The nature of the hydrogen bonds in pyridine-carboxylic acids is studied theoretically. There is an interesting relationship between O···N and N···H distances in the systems. The relation can be reasonably explained by the consideration of the charge transfer interactions.
Fusao Takusagawa, Akira Shimada, Kichisuke Nishimoto   +2 more
openaire   +1 more source

Pyridine-Based Cavitands for Acid and Carboxylate Recognition

Molecular Crystals and Liquid Crystals, 2006
The design, syntheses and binding capabilities of two novel cavitand-based receptors are described. Receptor 1, contains a cyclic array of pyridine moieties in its appendages and was synthesized in a single step from the known tetrol: refluxing tetrol with 2-bromomethyl 6-hydroxymethylpyridine under basic conditions. Receptor 2 was obtained by stirring
Nicola Edwards, Roger Helgeson, Yi-Lei Zhao, K. N. Houk   +3 more
openaire   +1 more source

Interactions between Carboxylic Acids and Heteroaromatics: A Rotational Study of Formic Acid–Pyridine

The Journal of Physical Chemistry A, 2016
The rotational spectra of four isotopologues of the 1:1 complex between formic acid and pyridine show that the two units are linked together through a "classical" (OH···N) and a weak (CH···O) hydrogen bond. The molecular system appears quite rigid and no effects of the internal motions have been observed in the spectrum.
Spada, Lorenzo, Gou, Qian, Giuliano, Barbara M., Caminati, Walther   +3 more
openaire   +3 more sources

Thermochemistry of aqueous pyridine-3-carboxylic acid (nicotinic acid)

The Journal of Chemical Thermodynamics, 2011
Abstract The molar enthalpy of solution of solid nicotinic acid (NA) at T = 298.15 K, to give an aqueous solution of molality m = 3.748 · 10−3 mol · kg−1, was determined as Δ sol H m  = (19,927 ± 48) J · mol−1, by solution calorimetry.
Elsa M. Gonçalves, Talita S. Rego, Manuel E. Minas da Piedade   +2 more
openaire   +1 more source