Predict major product.. Help

[Kev25]

Hi all,

 

I fell behind at Uni due to a bereavement and I caught up with Inorganic and Physical Chemistry but Organic I am struggling very much...

 

I have to predict the major product of the attached... I believe it is using Cram's rule but I just do not get it! Any help is greatly appreciated

 

[hypervalent_iodine]

The first step before figuring out stereochemistry with Cram's rule is to identify the reaction and product. Have you done this? The Mg reagent should be a huge give-away.

[Elite Engineer]

The Mg reagent should be a huge give-away.

Yea, right? The Mg pratically cries aloud with this kind of reaction...specifically, it a "Grignard reaction". All I can say it's a nucleophilic attack.

[Altered State]

If you have already figured out that you can predict its stereochemistry using Cram's rule, you probably already know what kind of reaction occurs.

I can't see where you are stuck.