Oxidizing reagents for alcohols

[oceanblue5841]

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Guys I need some clarification for reagents that oxidize alcohols.

My book states that for primary alcohols PCC is used to make an aldehyde, CrO3 to make a carboxylic acid. For secondary alcohols you can also use PCC, or Na2Cr2O7 to make ketones.

I've read that KMnO4 can do the same as CrO3. My confusion comes from destroyers use of K2Cr2O7 on primary alcohols, to make carboxylic acids. Is this essentially the same as Na2Cr2O7?

 

[rpatel8]

Yes

 

[dentalfanatic]

they can use any group 1 metal....the dichromate is whats really important...
Aslo - there are a bunch of different ways to oxidize alcohols.. jones ( CrO3), k2Cr2O7 , PCC/ ccl2 (not that powerful), KMnO4 (very strong) , 1. O3 2. H2O (or something like that) also not that strong...
it good if you can remember that:
primamry OH : carboxylic acids and aldehydes
Secondary OH : ketones
Tertiary: NO REACTION

hope this helps!

 

[dentalfanatic]

oh and for the primary OH : it depends on how strong the oxidizing reagent ur using is..