Question

Complete the electron-pushing mechanism for the reaction by drawing the necessary organic structures and curved arrows...

Complete the electron-pushing mechanism for the reaction by drawing the necessary organic structures and curved arrows for each step. Make sure to include all nonbonding electron pairs.

Complete the electron-pushing mechanism for the re


Complete the electron-pushing mechanism for the re



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Answer #1
Concepts and reason

The given reaction involves the reaction between a ketone and sodium borohydride in deuterated water and the curved arrow mechanism needs to be shown.

Fundamentals

Sodium borohydride reduces ketones to alcohol. They are hydride donors and thus carry out selective reduction of aldehydes and ketones.

The movement of electrons takes place from an electron rich to an electron deficient atoms or more electronegative atom.

The curved arrow mechanism is as follows:

Н
В
—Н
Н

The movement of curved arrows in next step is as follows:

:
-D
+

Ans:

The curved arrow mechanism is as shown below:

Н
-В—Н
н
Н
:о-
-D

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