If the chromic acid oxidation is performed with stoichiometric oxidant in the presence of diethyl ether as co-solvent (a method introduced by H.C. Brown), the epimerization of l-menthone to d-isomenthone is largely avoided.
Apple cider vinegar isn't likely to be effective for weight loss. Proponents of the apple cider vinegar diet claim that drinking a small amount of apple cider vinegar before meals or taking an apple cider vinegar supplement helps curb appetite and burn fat. However, there's little scientific support for these claims.
Burn fat. Drinking apple cider vinegar before a meal daily may help you burn more body fat. At first, my impression of apple cider vinegar was that it helps you burn off fat. Joy Bauer confirms, All type of vinegar contains acedic acid and it might have some fat fighting capabilities!.