Question

Finish the reactions:

CrO3 он нә50, но LAH 1. BH 2. МОН, НО, MgBr

Answer 1

Answer:-

1):-

Cr0, НЛАН, ѕо, но, т он H,0 о

(CrO₃/H​​​​​​​_{2​​​​​​​}SO​​​​​​​₄ , H₂O) is called Jones reagent. It oxidizes the -CHO group (aldehydic group) to carboxylic group (-COOH) and secondary alcohol group to ketone .

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2):-

LAH

LAH (lithium aluminium hydride) is a strong reducing agent. It reduces ketone to a secondary alcohol.

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3):-

1.BH3 2. NaOH, H₂O2

This reaction is called hydroboration- oxidation reaction . The reaction involves indirect addition of water molecule across the double bond according to anti-Markovnikov's rule.

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4):-

​​​​​​​

Mg Br 11) ve MBY

This reaction is the nucleophilic addition of propylmagnesium bromide (grignard reagent) on ketone.

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