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.
When you looked closely, the diet paired apple cider vinegar pills with a low-calorie menu. It's no wonder people lost weight. So I think there's been a lot of advertising about the benefits of apple cider vinegar for weight loss, she added, and consumers get those messages, and they think, 'Oh, this must be the next magic bullet.'