Results 21 to 30 of about 4,172 (223)
Phospho sulfonic acid: A novel and efficient solid acid catalyst for the one-pot preparation of 2H-indazolo[2,1-b]-phthalazine-triones [PDF]
The efficient one-pot condensation of aldehyde, dimedone, and phthalhydrazide has been achieved in the presence of a catalytic amount of phospho sulfonic acid as a novel environmentally benign heterogeneous solid acid under solvent-free conditions.
Kiasat Reza Ali +2 more
doaj +1 more source
NOX4-dependent Hydrogen peroxide promotes shear stress-induced SHP2 sulfenylation and eNOS activation [PDF]
© 2015 Elsevier Inc.All rights reserved. Laminar shear stress (LSS) triggers signals that ultimately result in atheroprotection and vasodilatation. Early responses are related to the activation of specific signaling cascades.
Anilkumar, Narayana +9 more
core +1 more source
A series of new bis azo dyes were synthesized starting from aromatic diamine with S/SO2 bridges and cyclic-1,3-dicarbonyl groups; contain active methylene group, namely; 3,3-dimethyl-1,5-cyclohexadione (dimedone), 1,3-cyclohexadione and 2,2-dimethyl-1,3 ...
Gülnihal ERTEN, Naki ÇOLAK
doaj +1 more source
Silica Sulfuric Acid-Mediated Synthesis of β-Enaminones and β-Enaminoesters Under Microwave Irradiation [PDF]
Silica sulfuric acid, a heterogeneous substance, has been found to be an efficient catalyst for the synthesis of β-enaminones and β-enaminoesters under in a microwave reactor within 2 min. The exptl.
Bandita Datta, ., Pasha, M.A.
core +1 more source
In this work the multi-component reactions of either of the arylhydrazocyclohexan-1,3-dione derivatives 3a–c with either of benzaldehyde (4a), 4-chlorobenzaldehyde (4b) or 4-methoxybenzaldehyde (4c) and either malononitrile (5a) or ethyl cyanoacetate (5b)
Rafat M Mohareb +2 more
doaj +1 more source
A facile synthesis of N-H-and N-substituted acridine-1,8-diones under sonic condition [PDF]
Synthesis of an assembly of structurally important N-H- and N-substituted acridine-1,8-diones by CAN (ceric ammonium nitrate) catalysed one-pot four-component reaction of electron-deficient and electron-rich aromatic aldehydes and aromatic amines or ...
Pasha, M.A., Sudha, S.
core +3 more sources
Crystal structure of (E)-5,5-dimethyl-2-[3-(4-nitrophenyl)allylidene]cyclohexane-1,3-dione
In the title compound, C17H17NO4, the cylohexane-1,3-dione ring adopts an envelope conformation with the dimethyl-subsituted C atom as the flap. Its mean plane is inclined to the benzene ring by 7.99 (19)°. The molecule has a trans conformation about the
Jae Kyun Lee +4 more
doaj +1 more source
A new magnetic supported manganese-based coordination complex (Fe3O4@SiO2@CPTMS@MBOL@ Mn) was prepared in consecutive stages and characterized via various techniques (VSM, SEM, TEM, XRD, FT-IR, EDX, TG-DTA, and ICP).
Maryam Ariannezhad +3 more
doaj +1 more source
A cell-permeable biscyclooctyne as a novel probe for the identification of protein sulfenic acids [PDF]
Reactive oxygen species act as important second messengers in cell signaling and homeostasis through the oxidation of protein thiols. However, the dynamic nature of protein oxidation and the lack of sensitivity of existing molecular probes have hindered ...
Hartley, Richard C. +4 more
core +2 more sources
Copper-sulfenate complex from oxidation of a cavity mutant of Pseudomonas aeruginosa azurin [PDF]
Metal-sulfenate centers are known to play important roles in biology and yet only limited examples are known due to their instability and high reactivity.
Hadt, Ryan G. +8 more
core +2 more sources

