• No results found

Pyridinium chlorochromate

ELECTRON TRANSFER REACTION BETWEEN PYRIDINIUM CHLOROCHROMATE (VI) AND METFORMIN, AN ANTIDIABETIC DRUG IN AQUEOUS ACID MEDIUM

ELECTRON TRANSFER REACTION BETWEEN PYRIDINIUM CHLOROCHROMATE (VI) AND METFORMIN, AN ANTIDIABETIC DRUG IN AQUEOUS ACID MEDIUM

... The electron transfer reaction of metformin with pyridinium chlorochromate (PCC) has been studied spectrophometrically over the range 2.0 10 3 [Metformin] 6.0, 0.05 [H + ] 0.20, 293 T 313 K and I = 0.3mol ...

16

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

... with pyridinium chlorochromate (PCC) and chromium trioxide/ acetic acid to form 3B- acetoxylanost-8-en-7,11-dione, which was later reduced to lanost-8-en-3β-ol-7,11- ...

8

Pyridinium Chlorochromate Photocatalytic Reduction using SiO2, TiO2 and Composite TiO2-

Pyridinium Chlorochromate Photocatalytic Reduction using SiO2, TiO2 and Composite TiO2-

... The field of heterogeneous photocatalysis has expanded rapidly within the last four decades, having undergone various developments especially in relation to energy and the environment. It can be defined as the ...

11

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

... The similarity of the fluorescence quenching curves at excitation wavelength 280 nm and 295 nm at the same temperature confirms that the fluorescence is dominated by the tryp[r] ...

24

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

... This study is aimed at isolation and identification of fungal flora of site III outdoor environment of Delta State University, Abraka.. This was determined by using op[r] ...

15

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

Synthesis of HMG-CoA Reductase Inhibitor Lanost-8-en-3β-ol-7, 11-dione through Oxidation of 3β-acetoxylanost-8-en-7, 11-dione with Pyridinium Chlorochromate

... 4 Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849 USA... have been.[r] ...

14

Substituted Aromatic Anils - A Kinetic Study using Pyridinium Chlorochromate (PCC)

Substituted Aromatic Anils - A Kinetic Study using Pyridinium Chlorochromate (PCC)

... Experimental results indicate that the rate of oxidation of anils by Cr(VI) in the presence of oxalic acid is several times greater than the independent oxidation rates[r] ...

5

Substituted Aromatic Anils- A Kinetic Study Using by Pyridinium Chlorochromate ( PCC )

Substituted Aromatic Anils- A Kinetic Study Using by Pyridinium Chlorochromate ( PCC )

... Experimental results indicate that the rate of oxidation of anils by Cr(VI) in the presence of oxalic acid is several times greater than the independent oxidation rates of anils and ox[r] ...

6

A simple and efficient route for synthesis of 2-alkylbenzothiazoles

A simple and efficient route for synthesis of 2-alkylbenzothiazoles

... The present two-step procedure involving condensation between 2-aminothiophenol and aliphatic aldehydes in the presence of 4Å molecular sieves followed by oxidation of the obtained 2-alkyl- 2,3-dihydrobenzo[d]thiazoles ...

5

REACTIVITY IN THE QUINOLINIUM CHLOROCHROMATE ON THE OXIDATION OF ANILINE IN AQUEOUS ACETIC ACID MEDIUM

REACTIVITY IN THE QUINOLINIUM CHLOROCHROMATE ON THE OXIDATION OF ANILINE IN AQUEOUS ACETIC ACID MEDIUM

... by pyridinium dichromate is found to proceed by a nonradical polar ...by pyridinium fluorochromate, [15] pyridinium chlorochromate, [16] and pyridinium bromochromate, [17] have been ...

13

([1 5]Dibenzo 18 crown 6)potassium chloro­chromate

([1 5]Dibenzo 18 crown 6)potassium chloro­chromate

... formed by a K + cation with one crown ether molecule and a chlorochromate anion. The cation is displaced from the mean plane of the ether O atoms by 0.849 (2) A ˚ towards the anion. It forms coordination bonds ...

13

Pyridinium nitrate at 290 K

Pyridinium nitrate at 290 K

... of pyridinium nitrate, (I), as determined by Serewicz et ...the pyridinium and nitrate ions, but the precision of the data (measured at room temperature by the Weissenberg method) was insuf®cient to locate ...

5

Pyridinium nitrate at 120 K

Pyridinium nitrate at 120 K

... Data collection: SMART Bruker, 1997; cell re®nement: SAINT Bruker, 2001; data reduction: SAINT; programs used to solve structure: SHELXTL Bruker, 2001; programs used to re®ne structure: [r] ...

6

Pyridinium methyl­sulfonate: a pseudosymmetric structure

Pyridinium methyl­sulfonate: a pseudosymmetric structure

... the temperature at 277 K. The reaction mixture was vigorously stirred for 24 h. The pyridinium chloride was ®ltered off and the solution concentrated. The precipitate was isolated and washed with dry ethanol. The ...

8

4 (Hy­droxy­amino­carbon­yl)pyridinium chloride

4 (Hy­droxy­amino­carbon­yl)pyridinium chloride

... The pyridinium NH group is involved in a bifurcated hydrogen bond with the Cl ion and the amide O atom of a translationally related cation, reducing the hydrogen bond angles to ...

6

Bis­(pyridinium) tetra­bromo­cobaltate(II)

Bis­(pyridinium) tetra­bromo­cobaltate(II)

... Data collection: SMART Bruker, 1997; cell refinement: SAINT Bruker, 1997; data reduction: SAINT; programs used to solve structure: SHELXS97 Sheldrick, 1997; programs used to refine struc[r] ...

6

4 (Ammonio­meth­yl)pyridinium dichloride

4 (Ammonio­meth­yl)pyridinium dichloride

... 2Cl , contains a network of 4- (ammoniomethyl)pyridinium cations and chloride anions which are interconnected by N—H Cl hydrogen bonds. The crystal packing is also influenced by intermolecular – stacking ...

6

3 (Ammonio­meth­yl)pyridinium dibromide

3 (Ammonio­meth­yl)pyridinium dibromide

... Non-covalent interactions play an important role in organizing structural units in both natural and artificial systems (Desiraju, 1997). They exercise important effects on the organization and properties of many ...

6

Pyridinium D(+) 10 camphor­sulfonate hemihydrate

Pyridinium D(+) 10 camphor­sulfonate hemihydrate

... A water molecule involved in two OÐH O bonds symmetrically bridges two camphor-10-sulfonate anions, and one pyridinium ion is linked to each camphorsulfonium moiety via an NÐH O( S) bridge. The SÐO bond lengths ...

7

4 (4 Nitro­benzene­sulfonamido)pyridinium tri­chloro­acetate

4 (4 Nitro­benzene­sulfonamido)pyridinium tri­chloro­acetate

... Benzenesulfonamides are very important intermediates in the organic synthesis and are widely used for the synthesis of pharmaceutical compounds (Talley et al., 2000). In our ongoing investigations on this topic we ...

7

Show all 249 documents...

Related subjects