Results 141 to 150 of about 22,715 (251)

Strain Release of 1‐Azabicyclo[1.1.0]butanes as a Gateway to Highly Functionalized Azetidines: New Strategies and Structural Motifs

Chemistry – A European Journal, Volume 32, Issue 31, 18 August 2026.
Over the past decade, the interest in azetidines has continuously risen, by virtue of their highly appealing pharmaceutical properties. Monocyclic, spirocyclic, and bridged azetidines can be accessed by leveraging 1‐azabicyclo[1.1.0]butanes as precursors.
Yuri Gelato, Philipp Natho, Marco Colella, Renzo Luisi   +3 more
wiley   +1 more source

From cyclohexyl isocyanide and diaminomaleonitrile to functional 5-(alkylamino)-6-substituted pyrazine-2,3-dicarbonitriles: synthesis, X-ray structural elucidation, antimicrobial testing and OLED analysis. [PDF]

RSC Adv
John E, Lenka S, Kumar A, Jou JH, Al-Azmi A.   +4 more
europepmc   +1 more source

Coordination‐Driven Direct C─H Metalation of N‐Heterocycles With a Superbasic Co(II) Amide Co(TMP)2

Angewandte Chemie, Volume 138, Issue 34, 17 August 2026.
By enabling regioselectivities that are inaccessible with conventional bases, this study introduces a Co(II) amide platform for the deprotonative C─H metalation of sensitive N‐heterocycles. Subsequent interception of the resulting Co(II) intermediates with external oxidants affords a family of sterically congested, TMP‐substituted heterocycles via C─N ...
Na Jin, Manting Mu, Max García‐Melchor, Eva Hevia   +3 more
wiley   +1 more source

One-dimensional palladium MOF as VEGFR2 and colchicine binding inhibitors with potential anticancer and anti-inflammatory activities: synthesis and molecular investigation. [PDF]

Sci Rep
Abdelhakim HK, Hassan SS, Ismail KM.
europepmc   +1 more source

Syntheses, crystal structure and thermal behavior of poly[di-μ-bromido-μ-2,3-di-methyl-pyrazine-κ² <i>N</i> ¹:<i>N</i> ⁴-cadmium(II)]. [PDF]

Acta Crystallogr E Crystallogr Commun
Näther C.
europepmc   +1 more source

Fast and Sensitive Measurement of Off‐Flavors in Recirculating Aquaculture Systems

Rapid Communications in Mass Spectrometry, Volume 40, Issue 15, 15 August 2026.
ABSTRACT Rationale Geosmin and 2‐methylisoborneol (2‐MIB) are odor‐active compounds responsible for earthy off‐flavors in fish, creating significant quality concerns in recirculating aquaculture systems (RAS). Their extremely low odor thresholds make rapid and highly sensitive detection essential for maintaining product quality and consumer acceptance ...
Pedro Martínez Noguera, Sylvester Holt, Raju Podduturi, Wender L. P. Bredie, Jonathan D. Beauchamp, Mikael A. Petersen   +5 more
wiley   +1 more source

A simple salicylaldehyde-bearing pyrazine as a turn-on fluorescent chemosensor for Al3+ and Zn2+ recognition and its applications

Reviews in Analytical Chemistry, 2022
Liu Yucun, Wu Miao, Zhao Jihan, Wang Yuan, Zhang Yongling   +4 more
doaj   +1 more source

Pyrazine-embedded N^N^N-chelating tetracoordinate organoboron polycyclic heteroaromatics with low-lying LUMO levels and near-infrared luminescence. [PDF]

Chem Sci
Zhu S, Xiao S, Chen X, Wang H, Zhang Z, Gan X, Ding J, Meng G.   +7 more
europepmc   +1 more source

SUBSTITUTION OF PYRIDINE-AND PYRAZINE N-OXIDES.

, 1965
SUBSTITUTION OF PYRIDINE-AND PYRAZINE N ...
ARNOLD LIPPERT. HIRSCH (7977623)
core  

Exogenous xylose trapped threonine to regenerate Amadori compounds and accelerated pH decline impeding pyrazines formation upon thermal treatment of Amadori compounds revealed by sotope labeling. [PDF]

Curr Res Food Sci
Chen P, Hu B, Dou Z, Meng F, Deng Q.
europepmc   +1 more source