نتایج جستجو برای: Anomeric based oxidation
تعداد نتایج: 3036890 فیلتر نتایج به سال:
Meysam Yarie was born in 1987 in Malayer/ Hamedan, Iran. He received his B.Sc. in Applied Chemistry (2010) from Malek-Ashtar University of Technology and M.Sc. in Organic Chemistry (2012) from Kurdistan University under the supervision of Dr. Kamal Amani. He is currently working towards his Ph.D. under the supervision of Professor Mohammad Ali Zolfigol. His research interest is the synthesis, c...
Stereoelectronic effects is a bridge between structure and reactivity [1]. Anomeric effect plays an important role in the domain of stereoelectronic interaction and can be used for description of several unusual phenomena. Intramolecular negative hyperconjugation is also known as anomeric effect [2]. In anomeric effect, both donor (lone pairs) and acceptor groups (electronegative elements) coex...
Meysam Yarie was born in 1987 in Malayer/ Hamedan, Iran. He received his B.Sc. in Applied Chemistry (2010) from Malek-Ashtar University of Technology and M.Sc. in Organic Chemistry (2012) from Kurdistan University under the supervision of Dr. Kamal Amani. He is currently working towards his Ph.D. under the supervision of Professor Mohammad Ali Zolfigol. His research interest is the synthesis, c...
meysam yarie was born in 1987 in malayer/ hamedan, iran. he received his b.sc. in applied chemistry (2010) from malek-ashtar university of technology and m.sc. in organic chemistry (2012) from kurdistan university under the supervision of dr. kamal amani. he is currently working towards his ph.d. under the supervision of professor mohammad ali zolfigol. his research interest is the synthesis, c...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
Retraction of ‘[TEATNM] and [TEATCM] as novel catalysts for the synthesis pyridine-3,5-dicarbonitriles via anomeric-based oxidation’ by Saeed Baghery et al. , New J. Chem. 2017, 41 9276–9290, https://doi.org/10.1039/C7NJ01934C.
A set of hypotheses is proposed that explains the anomeric specificity of aldopyranose dehydrogenases in terms of an evolutionarily selected function. The first hypothesis, based on stereoelectronic theory, argues that, in the "allowed" transition state for oxidation at the anomeric carbon, the two oxygens attached to the anomeric carbon each bear a lone pair of electrons antiperiplanar to the ...
The synthesis of S-glycosyl sulfonamides wherein the primary sulfonamide functional group (-SO(2)NH(2)) is directly attached to the anomeric position of a carbohydrate moiety is reported. Our general approach consists of first introducing a thioacetate group at the anomeric center of a per-O-acetylated sugar derivative. From this follows formation of a glycosyl sulfenamide (sugar-SNR(2)), oxida...
In this study, we have designed, synthesized and full characterized a novel biological based acidic nano organocatalyst via condensations reaction of uric acid phosphorous acid. The obtained compound was named theacrine tetrakis(phosphonic acid) (TTPA) prepared under refluxing ethanol. This new applied as an efficient recyclable catalyst for the preparation pyridines with indole moieties cooper...
Acetylation and CrO(3) oxidation in acetic acid (Angyal and James, Aust. J. Chem. 23: 1209-1221, 1970) was applied to 18 different glyceroglycolipids and glycosphingolipids of known structure. The lipids studied contained from one to five pyranosic monosaccharide units including alpha- and beta-linked glucose, galactose, mannose, and N-acetylgalactosamine and beta-linked N-acetylglucosamine. Mo...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید