Results 91 to 100 of about 70,902 (254)

Perceiving and Knowing as Activities [PDF]

open access: yes, 2016
According to the tradition of most empiricists, perception is the basis for all our knowledge (at least of the world). The tradition also assumes that perception by humans is a passive activity resulting in some static states pertaining perception and ...
Machamer, Peter, Springle, Alison
core   +1 more source

A review on the synthesis, characterization and application of Schiff bases containing resorcinol moieties and their first row transition metal complexes

open access: yesResults in Chemistry
Resorcinol based carbonyl precursors such as 4, 6-Diacetylresorcinol, 2, 4-dihydroxy- acetophenone and 2, 4-dihydroxybenzaldehyde were used for the synthesis of different Schiff bases mainly through conventional method of synthesis.
Tesfaye Dechasa   +2 more
doaj   +1 more source

Synthesis and biological activities of some 3-chloro-4-(substituted phenyl)-1-{[2-oxo-2-(5-phenyl-1h-tetrazol-1-yl) ethyl] amino} azetidin-2-one as potential antibacterial agents

open access: yesOrbital: The Electronic Journal of Chemistry, 2011
Some new 3-chloro-4-(substituted phenyl)-1-{[2-oxo-2-(5-phenyl-1Htetrazol1-yl) ethyl] amino} azetidin-2-one have been synthesized from Schiff bases of 5-phenyltetrazole.
P. B. Mohite, V. H. Bhaskar
doaj   +1 more source

Schiff base helicenes

open access: yes, 2019
Circularly polarized light emitters or complexes displaying magnetochiral dichroism (linking magnetism and chirality) are actively researched species. 1 Helicenes form a class of chiral molecules renowned for their intriguing physical properties, particularly their typical helicoidal structure and exceptional chiroptical properties (intense optical ...
Zigon, Nicolas   +3 more
openaire   +2 more sources

Inactivation of Mandelate Racemase by 3-Hydroxypyruvate Reveals a Potential Mechanistic Link between Enzyme Superfamilies [PDF]

open access: yes, 2015
Mandelate racemase (MR), a member of the enolase superfamily, catalyzes the Mg2+-dependent interconversion of the enantiomers of mandelate. Several α-keto acids are modest competitive inhibitors of MR [e.g., mesoxalate (Ki = 1.8 ± 0.3 mM) and 3 ...
Bearne, Stephen L.   +3 more
core   +1 more source

Synthesis, And Physico-Chemical and Biological Charaterization of New Schiff Bases Derived From Thiophene and Their Transition Metal Complexes [PDF]

open access: yes, 2007
Several new Schiff bases formed from S-benzyldithiocarbazate (SBDTC) and S- methyldithiocarbazate (SMDTC) with selected aldehyde/ketones containing a thiophene ring namely, 1-(2-thienyl)-1-propanone and thiophene-2-carbaldehyde in 95 % of ethanol have ...
Osman, Md.Uwaisulqarni
core  

Halkalı Alkil Tiyofen-Schiff Bazlarının Protonlanma ve Bunların Ni(II) İyonu ile Kompleks Oluşum Sabitlerinin Belirlenmesi

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2011
Özet: Halkalı alkil tiyofen-Schiff bazların protonlanma ve bunların Ni(II) iyonu ile olan komplekslerinin kararlılık sabitleri %50 etil alkol-su (v/v) ortamında, potansiyometrik titrasyon yöntemi ile tayin edildi.
Nurşen Sarı   +2 more
doaj  

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