Results 41 to 50 of about 2,915 (204)

Formation of 4-Methylphenanthrenes in Palladium-Catalyzed Annulation of Diethyl 2,2‘-Diiodo-4,4‘-biphenyldicarboxylate with Internal Alkynes, Using Methyl Nitrobenzoates as the Methylating Agent

open access: yes, 2016
The reaction of diethyl 2,2‘-diiodo-4,4‘-biphenyldicarboxylate (7) with diarylacetylenes in the presence of 3,5-(NO2)2C6H3CO2Me (MeDNB) or 4-(NO2)C6H4CO2Me (MePNB), Pd(OAc)2 (10 mol %), K2CO3, and Bu4NBr, in DMF at 100 °C, gives 4-methyl-9,10-diaryl-2,7 ...
Shie-Ming Peng (1425703)   +4 more
core   +1 more source

Synthesis of 4‐Hydroxyacetophenone‐Derived Bis‐Schiff Bases as Potent Cholinesterase Inhibitors: In Vitro Evaluation, Molecular Docking, DFT, and ADMET Analysis

open access: yesChemistry &Biodiversity, Volume 23, Issue 8, August 2026.
A series of 4‐hydroxyacetophenone‐based bis‐Schiff bases were synthesized as dual cholinesterase inhibitors. Compound 2i showed the highest AChE and BuChE inhibition, supported by molecular docking, DFT, QTAIM, and ADMET studies. SAR analysis revealed the role of methoxy substitution in enhancing activity, highlighting 2i as a promising lead candidate ...
Muhammad Daud   +11 more
wiley   +1 more source

PRODUCTION AND PROPERTIES OF 2,3-BUTANEDIOL: XXVII. CRYSTALLINE ESTERS SUITABLE FOR IDENTIFICATION AND ESTIMATION OF THE ISOMERIC 2,3-BUTANEDIOLS

open access: yes, 1948
The monoacid phthalates, di-p-nitrobenzoates, di-m-nitrobenzoates, di-3,5-dinitrobenzoates, di-p-bromobenzoates, and di-p-methoxybenzoates of levo-, and meso- and dl-2,3-butanediol were prepared to find which derivatives had the best properties for the ...
A. C. Neish, Florence M. Robertson
core   +1 more source

Electrochemical study of butyl-pyrene nitrobenzoate derivatives trapped on MWCNT nanostructured electrodes [PDF]

open access: yes, 2021
In the scope of our studies tending to find new nanostructured electrodic platforms containing nitroaromatic compounds (NACs) capable of generating in situ electrocatalytic redox couples, we synthesized and electrochemically studied three related 4 ...
Moscoso, Raúl   +7 more
core   +1 more source

The X‐Ray Crystal Structure of BorF, the Flavin Reductase Subunit of a Two‐Component Flavin‐Dependent Tryptophan Halogenase

open access: yesProteins: Structure, Function, and Bioinformatics, Volume 94, Issue 8, Page 1529-1540, August 2026.
ABSTRACT BorF is a short‐chain flavin reductase from a desert soil bacterium that uses NADH to reduce FAD to FADH2, which is used by the tryptophan‐6‐halogenase BorH to chlorinate tryptophan in the biosynthetic pathway of borregomycin A. The X‐ray crystal structure of BorF bound to FAD was solved to 2.37 Å by molecular replacement.
Zheng Ma   +3 more
wiley   +1 more source

3,4-Diaminopyridinium 4-nitrobenzoate–4-nitrobenzoic acid (1/1)

open access: yesActa Crystallographica Section E, 2009
In the title compound, C5H8N3+·C7H4NO4−·C7H5NO4, the non-H atoms of the 3,4-diaminopyridinium cation are coplanar, with a maximum deviation of 0.022 (1) Å. The carboxylate and nitro groups of the 4-nitrobenzoate anion are twisted out of the attached ring planes by dihedral angles of 15.89& ...
Hoong-Kun Fun, Kasthuri Balasubramani
openaire   +2 more sources

Salt forms of the monoazo dye Mordant Orange 1

open access: yesActa Crystallographica Section C, Volume 82, Issue 8, Page 427-436, August 2026.
The crystal structures of eight salt forms of the carboxylate‐functionalized monoazo dye Mordant Orange 1 are presented and discussed, primarily in terms of their coordination behaviour.The crystal structures of eight salt forms of the carboxylate‐functionalized monoazo dye Mordant Orange 1 are presented and discussed, primarily in terms of their ...
Alan R. Kennedy   +4 more
wiley   +1 more source

Allylic Cations in Solvolysis. A Case of Non-Participation [PDF]

open access: yes, 1984
The rate constants and secondary deuterium Isotope ef'fects are measured in the solvo'lysis of various allyHc p-nitrobenzoates. The obtained results are explained by differences in inductive effects o>f vardous groups in the side-chain. These results
Ladika, Mladen   +3 more
core   +1 more source

On the syntheses and structures of two calcium coordination polymers containing terminal amide ligands [PDF]

open access: yes, 2020
The syntheses and crystal structure of the calcium coordination polymers [Ca(NMF)2(4-nba)2] 1 (4-nba = 4-nitrobenzoate; NMF=N-methylformamide) and [Ca(BA)2(4-nba)2] 2 (BA= benzamide) is reported.
Srinivasan, Bikshandarkoil R; GOA UNIVERSITY   +1 more
core   +2 more sources

Crystal Structure of L-Histidinium 2-Nitrobenzoate [PDF]

open access: yesJournal of Amino Acids, 2012
A new nonlinear optical organic compound, namely, L-histidinium 2-nitrobenzoate (abbreviated as LH2NB (I); ([C6H10N3O2]+[C7H4NO4]−)), was synthesized. The molecular structure of LH2NB (I) was elucidated using single crystal X-ray diffraction technique.
Natarajan, Subramanian   +3 more
openaire   +2 more sources

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