AUTOXIDATION REACTIONS CATALYZED BY COBALT ACETATE BROMIDE

1965 ◽  
Vol 43 (5) ◽  
pp. 1306-1317 ◽  
Author(s):  
Allan S. Hay ◽  
Harry S. Blanchard
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Carboxylic Acids ◽  
Atmospheric Pressure ◽  
Active Catalyst ◽  
Acetic Acid Solution ◽  
Cobalt Acetate ◽  
Major Product ◽  
High Yields

Cobalt acetate bromide in acetic acid solution is an extraordinarily active catalyst for the autoxidation of hydrocarbons. Carboxylic acids and ketones are readily prepared in high yields at moderate temperatures and at atmospheric pressure. In addition, benzylic and allylic groups can be converted to esters of the corresponding alcohols, and the oxidation of tetralin can be controlled to give either α-tetralone or 1,2-dihydronaphthalene as the major product. A mechanism for these reactions is postulated.

The oxidation of progesterone under GoAggIII conditions

1991 ◽  
Vol 56 (5) ◽  
pp. 984-990 ◽  
Author(s):  
Derek H. R. Barton ◽  
Dario Doller
Keyword(s):  
Hydrogen Peroxide ◽  
Acetic Acid ◽  
Acid Solution ◽  
Ferric Chloride ◽  
Picolinic Acid ◽  
Acetic Acid Solution ◽  
Major Product ◽  
Aqueous Hydrogen Peroxide ◽  
Ring Contraction ◽  
The Third

The oxidation of pregn-4-ene-3,20-dione (progesterone) by the GoAggIII system (aqueous hydrogen peroxide, ferric chloride, picolinic acid in pyridine-acetic acid solution) has been investigated. Two tri-keto derivatives were isolated and identified as pregn-4-ene-3,6,20-trione and pregn-4-ene-3,12,20-trione. The third major product isolated was identified as the unstable 5α-formyl-A-nor-pregnane-3,20-dione, which deformylated spontaneously to A-nor-5β-pregnane-3,20-dione. A mechanism for the A-ring contraction is proposed, based upon the participation of a carbon-Fe(V) intermediate.

Some Approaches to Viscometric Study of Chitosan in Acetic Acid Solution

2016 ◽  
Vol 10 (2) ◽  
pp. 135-139 ◽  
Author(s):  
Valentina Chernova ◽  
◽  
Angela Shurshina ◽  
Elena Kulish ◽  
Gennady Zaikov ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Intrinsic Viscosity ◽  
Acetic Acid Solution ◽  
Conformational State ◽  
Macromolecular Coil ◽  
Degree Of Swelling ◽  
Current Value ◽  
Viscometric Study

Some ways of estimating the values of the intrinsic viscosity of chitosan were analyzed. It was shown that the method of Irzhak and Baranov for estimating the current value of the intrinsic viscosity allows to adequately estimates the conformational state of the macromolecular coil and its degree of swelling.

Compatibility studies of chitosan/PVA blend in 2% aqueous acetic acid solution at 30°C

2010 ◽  
Vol 82 (2) ◽  
pp. 251-255 ◽  
Author(s):  
H.M.P. Naveen Kumar ◽  
M.N. Prabhakar ◽  
C. Venkata Prasad ◽  
K. Madhusudhan Rao ◽  
T.V. Ashok Kumar Reddy ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Acetic Acid Solution ◽  
Aqueous Acetic Acid ◽  
Compatibility Studies ◽  
Aqueous Acetic Acid Solution

The Action of Platinum on Cholesterol in Acetic Acid Solution

1944 ◽  
Vol 66 (10) ◽  
pp. 1752-1755 ◽  
Author(s):  
Herbert S. Anker ◽  
Konrad Bloch
Keyword(s):  
Acetic Acid ◽  
Acid Solution ◽  
Acetic Acid Solution
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