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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3ro200

Which of the following compounds are cleaved by under mild conditions?

  1. A2,3-dimethylbutane-2,3-diol
  2. Bpropane-1,3-diol
  3. C2-hydroxypropanoic acid
  4. Dpropane-1,2,3-triol

Answer: A, C, D

Pinacol, lactic acid (alpha-hydroxy acid) and glycerol all contain adjacent oxygen-bearing carbons. Propane-1,3-diol has its OH groups separated by a CH2, so no cyclic periodate ester forms and it is not cleaved.
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