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Hydroboration oxidation

Lesson 6 of 9 • 4 upvotes • 13:18mins

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Dhirpal

This step is a migration of an alkyl group. The pair of electrons in the C–B bond migrates to oxygen, leading to breakage of C–B and formation of C–O. The O-O bond is weak and also breaks down, forming hydroxide. This migration is very similar to 1,2-hydride and alkyl shifts we’ve seen previously, except that instead of migrating to the empty p orbital on a carbocation, the electron pair is essentially performing an attack on the σ* orbital of the O–O bond. The charge on boron goes from negative to neutral.

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1

Hydroboration Part 1

15:00mins

2

Hydroboration Part 2

15:00mins

3

Hydroboration Part 3

15:00mins

4

Hydroboration Part 4

14:00mins

5

Hydroboration Part 5

15:00mins

6

Hydroboration oxidation

13:18mins

7

Hydroboration oxidation : The final step

13:36mins

8

Hydroboration oxidation : tips and tricks

12:49mins

9

Hydroboration: Questions and concept

13:29mins

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