Making a Grignard reagent can be very time consuming and often does not work. In the following molecule, why would a protecting group be needed before carrying out the reaction below? HO MeMgBr OH . rajon O The Grignard reagent will react with the alcohol before the ketone. O If it isn't protected, the product will be a carboxylic acid. Magnesium is Lewis acidic and will coordinate with the alcohol. O There is no need to protect the alcohol