Oxidizing agents

[DrRoyal Pains]

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In my notes I have PCC carries out the same action as CrO3/HCl (primary alcohols to aldehydes, and secondary alcohols to ketones). Does this sound right?
Also, Na2Cr2O7, H2CrO4/H2SO4, or K2Cr2O7/H2SO4, or CrO3/H2SO4 are the strongest oxidizing agents (i.e., primary alcohols and aldehydes ------> carboxy acids, and secondary alcohols ------> ketones).

 

[Blue87Fiero]

That sounds right to me. except for the first part about PCC and CrO3 I am pretty sure that CrO3 is strong and goes all the way to a carboxylic acid. I thought that only PCC and some other weird compound that I never see used were the only week oxidizing agents?

 

[Blue87Fiero]

I was wrong its not just PCC

Looking it up online shows that if CrO3 mixed with HCl and pyridine then thats how PCC is formed. also Collins reagent (CrO3 in CH2Cl2) and chromyl chloride (CrO2Cl2) are the other common weak oxidizing agents. from

http://pages.towson.edu/ladon/orgrxs/reagent/oxidizer.htm

 

[DrRoyal Pains]

Alright, thanks for the clarification. I was confused on CrO3 also, but I thought it had something to do with the solvent. Thanks.

 

[thejamespark]

Alright, thanks for the clarification. I was confused on CrO3 also, but I thought it had something to do with the solvent. Thanks.

PCC is a weak oxidizing agents to form aldehydes or ketones from alcohols.
it doesn't form carboxylic acids.