destroyer ochem 57

[topdent1]

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When using the reagent NBS, it adds to the allylic position. Does that mean it will ALWAYS add the reagent 3 carbons away from the double bond? And this can be from either side correct?

 

[jdent]

ya

 

[mddang]

I don't really get what you're saying, but if we have c-c=c-c-c (numbered 1 on the left to 5 on the right), then it would add to either C-1 or C-4.


Allylic means a carbon adjacent to a carbon involved in a double bond.

 

[klutzy1987]

I don't really get what you're saying, but if we have c-c=c-c-c (numbered 1 on the left to 5 on the right), then it would add to either C-1 or C-4.


Allylic means a carbon adjacent to a carbon involved in a double bond.

And in this case it would be C-4 because it is a secondary allylic.