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.
Some proponents claim the ancient Egyptians used apple cider vinegar for weight loss. Iâm sure the apple cider vinegar diet didnât work any better then than it does now, despite the rave reviews and anecdotal evidence cited by the folks who want to sell you the vinegar or products containing it.