Results 61 to 70 of about 64,409 (320)

Synthesis, biological evaluation and SAR study of novel pyrazole analogues as inhibitors of Mycobacterium tuberculosis [PDF]

open access: yes, 2008
As a continuation of our previous work that turned toward the identification of antimycobacterial compounds with innovative structures, two series of pyrazole derivatives were synthesized by parallel solution-phase synthesis and were assayed as ...
Ahmad   +27 more
core   +1 more source

Supramolecular Chemistry in Metal–Organic Framework Materials

open access: yesAdvanced Materials, EarlyView.
This review highlights synergies between reticular chemistry and supramolecular chemistry. The role of supramolecular interactions in determining framework…guest interactions and attempts to understand dynamic behavior in metal–organic frameworks (MOFs), particularly emphasizing the development of crystal sponges, studying reactions in frameworks and ...
Eugenia Miguel‐Casañ   +3 more
wiley   +1 more source

Crystal structure of (3,5-dibromo-2-hydroxyphenyl){1-[(naphthalen-1-yl)carbonyl]-1H-pyrazol-4-yl}methanone

open access: yesActa Crystallographica Section E, 2014
In the title compound, C21H12Br2N2O3, a 1,4-diaroyl pyrazole derivative, the dihedral angles between the naphthalene ring system and the pyrazole ring, the pyrazole and benzene rings, and the naphthalene ring system and benzene ring are 50.0 (2), 51.1 (2)
Yoshinobu Ishikawa, Yuya Motohashi
doaj   +1 more source

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

open access: yesAdvanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner   +4 more
wiley   +1 more source

Revisiting the structure and chemistry of 3(5)-Substituted Pyrazoles [PDF]

open access: yes, 2019
Pyrazoles are known as versatile scaffolds in organic synthesis and medicinal chemistry, often used as starting materials for the preparation of more complex heterocyclic systems with relevance in the pharmaceutical field.
Alam   +34 more
core   +2 more sources

Rhodium‐Catalyzed Oxidative CH o‐Arylation of s‐Aryltetrazines with Aryl Boronic Acids: One‐Step Selective Access to T‐Shaped and Z‐Shaped Polyaromatics

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
A one‐step regioselective access to T‐Shaped and Z‐Shaped polyaromatics s‐tetrazines by a rhodium‐catalyzed oxidative CH o‐functionalization is reported. Electron‐rich aryl coupling partners display a higher reactivity than electron‐poor aryl, and allow the formation of poly(hetero)aromatic derivatives while avoiding 1,4‐azaphilic addition of the ...
Oumaima Abidi   +6 more
wiley   +1 more source

1,5-Dimethyl-4-[(E)-3-phenoxybenzylideneamino]-2-phenyl-1H-pyrazol-3(2H)-one

open access: yesActa Crystallographica Section E, 2008
The title Schiff base, C24H21N3O2, adopts an E configuration with respect to the central C=N bond. The pyrazole ring and the central benzene ring attached to the imino group are almost coplanar. The phenyl ring attached to the pyrazole unit is twisted by
Xue-Li Cheng   +4 more
doaj   +1 more source

Positive allosteric modulators of the a-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor [PDF]

open access: yes, 2010
L-glutamate is the major excitatory neurotransmitter in the mammalian central nervous system (CNS) and plays a fundamental role in the control of motor function, cognition and mood.
Grove, Simon J .A.   +4 more
core   +1 more source

Azabicyclo[1.1.0]butyl‐Substituted Sulfonimidoyl Fluoride: Electrophilic Hub Bridging Late‐Stage Azetidine Incorporation with Sufex Chemistry

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
GA: Strained small motifs and SuFEx hubs are of increasing importance in drug discovery to enable efficient late‐stage functionalization. Here, the synthesis of bench‐stable azabicyclo[1.1.0]butyl‐substituted sulfonimidoyl fluoride as an electrophilic hub with dual activation mode is reported.
Defne Serbetci   +5 more
wiley   +1 more source

2-{5-[2-(4-Nitrophenoxy)phenyl]-1-phenyl-1H-pyrazol-3-yl}phenol

open access: yesActa Crystallographica Section E, 2010
In the title compound, C27H19N3O4, the phenol and pyrazole rings are almost coplanar [dihedral angle = 0.95 (12)°] due to an intramolecular O—H...N hydrogen bond, whereas the phenyl ring is tilted by 40.81 (7)& ...
Ali Haider   +4 more
doaj   +1 more source

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