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KMnO4 in variety of different forms...


RapedByLifeSci

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can anybody verify this for me?

 

This is my stack of notes on potassium permanganate that I have been able to compile... not sure if it's right or wrong though!

 

o KMnO4 in SB (BASE) with HEAT / same with ozone & water

 TB + DB cleavage to form carboxylic acids

 TERMINAL TB will produce carboxylic acid and CO2

 TERMINAL TB in NEUTRAL pH does NOT cleave the bond. It just produces a ketone acid.

o KMnO4 in WA (ACID)

 DB cleavage to form carboxylic acids or ketones

 NO ALDEHYDES!!! Aldehydes are ALWAYS OXIDIZED to carboxylic acids

o KMnO4 in COLD DILUTE form

 Makes di-ols (SYN format) in DB

 In TB: makes diketone (if internal) or ketone acid (if terminal)

 

 

WHAT I HAVEN'T finalized, and I was hoping others could tell me was:

 

- what happens to an INTERNAL or TERMINAL ALKYNE when treated by WEAK ACID potassium permanganate?

 

Thanks!

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