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Pyridinium Chlorochromate

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Pyridinium Chlorochromate

Post  acskjw on Sun Oct 10, 2010 4:58 am

Is the reaction equation of oxidation of alcohol using Pyridinium Chlorochromate as below?

C5H5NHCrO3Cl + R2CHOH → C5H5NHCl + H2CrO3 + R2C=O

According to wikipedia, it said that black tar would be formed. I would like to know what is the compound present in the black tar?
Is it C5H5NHCl + H2CrO3 ? Are there any solvents to dissolve the compounds?

C5H5NHCl is organic or aqueous?
H2CrO3 is organic or aqueous?


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Pyridinium Chlorochromate,acskjw

Post  Thesci3141 on Sun Dec 26, 2010 10:35 pm

I am not sure if the equation is correct,I have not investigated it.It looks correct. Obviously,It is an oxidation of a secondary alcohol to an aldehyde.As far as ablack sludge,it good be a number of chemical.More than likely a mixture of reactants and products. The c5h5nhcl is organic. The h2cro3 denotes chromic acid which only exists in h2o solution,it is inorganic.If you are trying to obtain a specific aldehyde (or ketone,in the case of primary alcohols). You may be able to extract these from the mixture by fractional distillation possibly also with vaccum.


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