Organic Chemistry?

Question

If there is a 3-methylpentane that goes reaction with Br2, hv what is this major organic product? and say if this major organic product undergo another reaciton with Mg, THF what would be the produc tthen?

Answer 1

If 3-methylpentane undergoes reaction with Br2 with light present the product of the reaction will be 3-bromo-3-methylpentane. The reason that the bromine will attach at the 3-carbon on the pentane chain is because the bromine will add to the most substituted carbon and the 3-carbon is the only tertiary carbon in the molecule and is therefore the most subsituted carbon. Bromine is very selective for more substituted carbons so the major product will be 3-bromo-3-methylpentane.

If you subject 3-bromo-3-methylpentane to Grignards reagent the magnesium will subsitute at the bromine position and will sandwich itself between the 3-carbon of the pentane backbone and the bromine atom. The name of the final product will be 3-methyl-3-pentylmagnesium bromide.

Answer 2

There is no one major organic product with 3-methylpentane and bromine. The reaction is a freee radical one, and a Br atom could be substituted for and H atom almost anywhere in the molecule.

Are you sure that the original organic reactant wasn't an alkene?

Then you want to look up Grignard Reagents.

Answer 3

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