what are colin and jones reagents.. how are they distinguished?

collins reagent is pyridinium chlorochromate...abbrevated as PCC. it is a selective reagent used for converting of 1 alcohols to aldehydes..

jones reagent is pyridinium dichromate...abbrevated as PDC..it  will completely convert alcohols to carboxylic acids and ketones..

plz approve it if you r satisfied..!

priyanka tata

Dear student,

Collin's reagent or Dipyridine Cr(IV) oxide...solid chromic anhydride and pyridine are dissolved in methylene chloride.

Function:

to oxidise primary alcohols to aldehydes without converting to the acids

Jones reagent or solution of sodium dichromate in dilute sulphuric acid.

Function:

 To cause oxidation of secondary alcohol to ketone without affecting double or triple bonds