HYDROXY GROUPS
![Synthesis and Solvatochromic Behavior of Hexaphenylbenzenes and Indeno[1,2 b]fluorene Derivatives with Hydroxy Groups](data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==)
Synthesis and Solvatochromic Behavior of Hexaphenylbenzenes and Indeno[1,2 b]fluorene Derivatives with Hydroxy Groups
... phenyl groups. We herein therefore also studied an OP which has its OH groups substituted with a planar in- deno[1,2-b]fluorene structure (IF-OH), synthesized by the cyclodehydrogenation of HPB-OH, and ...
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Potassium (1R,4R,5S,8S) 4,5,8 trihydroxy 3 oxo 2,6 dioxabicyclo[3 3 0]octane 4 sulfonate dihydrate
... from hydroxy or sulfonate ...primary hydroxy group is linked to the second C atom from the lactone C atom, forming a hemi- acetal function, thereby creating a bicyclic system of two fused five-membered ...
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Crystal structure of trans bis(diethanolamine κ3O,N,O′)manganese(II) bis(3 aminobenzoate)
... The MABA anion is connected to the complex ion by a pair of rather strong O—H O hydrogen bonds involving the DEA hydroxy groups [2.562 (3) and 2.611 (3) A ˚ ; Table 1], which give rise to the formation of a ...
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4,4′ Dithiodiphenol: a chain of rings generated by two pairs of O—H⋯O hydrogen bonds
... Hydrogen bonding, which is a powerful organizing force in designing various supramolecules and solid-state architectures (Subramanian & Zaworotko, 1994), is extensively used not only for networking numerous organic ...
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Chlorobis[2 (2 pyridyl)ethanol]copper(II) chloride
... the hydroxy groups of the pyet ligands form strong hydrogen bonds with chloride ions, while the phenyl and ethylene H atoms of pyet are involved in weak interactions with both the chloro ligand and chloride ...
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Crystal structure of methyl 4 (4 hydroxyphenyl) 6 methyl 2 oxo 1,2,3,4 tetrahydropyrimidine 5 carboxylate monohydrate
... The hydroxy groups of the organic molecules donate O—H O hydrogen bonds to water ...the hydroxy group accepts N—H O hydrogen bonds from amides whereas the water molecules donate O—H O hydrogen bonds ...
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Cinnamic acid derivatives: A new chapter of various pharmacological activities
... Antimicrobial activity of CA derivatives is due to the presence ester and amide groups. Narasimhan and co-workers have reported the antibacterial activity against Escherichia coli and Staphylococcus aureus, ...
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meso 4,4′ Difluoro 2,2′ {[(3aR,7aS) 2,3,3a,4,5,6,7,7a octahydro 1H 1,3 benzimidazole 1,3 diyl]bis(methylene)}diphenol
... there are two intramolecular O—H N hydrogen bonds involving the N atoms of the imidazolidine ring and the hydroxy groups. The crystal studied was a meso compound obtained by the reaction of the aminal ...
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Di μ chlorido bis{[(3,4 η) 2,5 dimethylhex 3 yne 2,5 diol]copper(I)}
... OH groups of the alkyne ligands of (I) are engaged in hydrogen-bond interactions, of which three are intermolecular and one is intramolecular (O3—H3 Cl1; ...the hydroxy groups O1—H1, O2—H2 and O4—H4 ...
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Prop 2 ynyl 3 (3,4 dihydroxyphenyl)prop 2 enoate monohydrate
... hydroxy groups were fixed at 0.83 A Data collection: CAD-4 EXPRESS Enraf–Nonius, 1994; cell refinement: CAD-4 EXPRESS; data reduction: XCAD McArdle, 2000; programs used to solve structur[r] ...
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catena Poly[[[(2,2′ bipyridine κ2N,N′)manganese(II)] μ (2,5 dichloro 3,6 dioxocyclohexa 1,4 diene 1,4 diolato) κ4O1,O6:O3,O4] ethanol disolvate]
... ) ligand and two ethanol solvent molecules. The Mn II ion is octahedrally coordinated by two N atoms of one bpy ligand and four O atoms of two chloranilate ions. The chloranilate ion serves as a bridging ligand between ...
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Crystal structures of the solvent free and ethanol disolvate forms of 4,4′ (diazenediyl)bis(2,3,5,6 tetrafluorobenzoic acid) exemplifying self stabilized azobenzene cis configurations
... alternating hydroxy groups of residual ethanol and the carboxyl groups of the title molecule are arranged in two different ways, by forming either 12- membered rings involving four molecules (two ...
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Formation of dibenzo-p-dioxins and dibenzofurans in oxidation of 2-chlorophenol over iron oxide/silica surface
... terminal hydroxy groups on the active surfaces, followed by an electron transfer from the chemisorbed molecule of chlorophenolate to an active site 3 , subsequent reduction of the active site on the ...
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SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF THE 5-[2(3)-DIALKYLAMINO ALKOXY] ISATIN 3- THIOSEMICARBAZONES AND 5-[2(3)-DIALKYLAMINO ALKOXY] ISATIN-3-HYDRAZONE
... In the present work, some new 5-[2(3)-dialkylaminoalkoxy] Indole 3-thiosemicarbazone 2-ones and 5-[2(3)- dialkylaminoalkoxy] Indole 3-hydrazone 2-one were prepared from 5-hydroxy isatin. 5-hydroxy Isatin ...
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Catalyst and Solvent Free Microwave Assisted Expeditious Synthesis of 3 Indolyl 3 hydroxy Oxindoles and Unsymmetrical 3,3 Di(indolyl)indolin 2 ones
... [29] while Makarem and co-workers reported an electrochemical method using EtOH/Propanol (60 - 240 mi- nutes) [30]. Srihari and Murthy reported a heterogeneous catalyst (Kaolin/KOH) in the presence of MeOH as a solvent ...
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Determination of Cr(III), Cu(II), Zn(II), Cd(II) and Pb(II) in food samples by FAAS after preconcentration on silica gel modified with 5 [2 hydroxybenzylideneamino] 2 hydroxy benzoic acid
... Therefore in the present study 5 [2-hydroxy benzylideneamino] 2-hydroxy benzoic acid was prepared and immobilized with silica gel used as an adsorbent for the pre-concentration of Cr(III), Cu(II), Zn(II), ...
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Inhibitive effect of 8-hydroxy Quinoline on the corrosion of mild steel in 1M HCl R. S. Dubey, Pratap Kamble
... functional groups, electronic structure of inhibiting molecule, molecular area and molecular weight of ...functional groups and conjugated double bonds have been reported as effective corrosion inhibitor ...
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FORMULATION AND EVALUATION OF EXTENDED RELEASE TABLETS OF METFORMIN HYDROCHLORIDE
... of Hydroxy propyl methyl cellulose K15M, Hydroxy propyl methyl cellulose K100M and Sodium carboxy methyl cellulose as release retardant polymers by wet granulation ...
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A dinuclear zinc complex with (E) 4 dimethylamino N′ (2 hydroxybenzylidene)benzohydrazide
... the hydroxy O atom of salicylaldehyde, the imine N atom, the carbonyl O atom, the formate carboxylate O atom and the hydroxy O atom of the salicylaldehyde moiety in a symmetry-related ...
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2,6 Dimethyl 4H 1 benzopyran 4 one
... benzopyrones (also known as chromen-4-ones) with poten- tially diverse pharmacological activities. It was synthesized by acylation of 2-hydroxy-4-methylacetophenone with ethyl acetate in the presence of sodium ...
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