21. Dehydrogenation is an important reaction because it converts endothermic and require temperatures of 500 �C and above.22. It occurs naturally in citrus oils, but commercial samples are usually produced from dodecanol by dehydrogenation . 23. Reaction by-products ( mainly hydrogen ) are usually used as fuel for the propane dehydrogenation reaction. 24. MoO 2 has been reported as catalysing the dehydrogenation of alcohols, the reformation of hydrocarbons and biodiesel. 25. Both dehydrogenation of estradiol by 17?-HSD into estrone and conjugation into estrogen conjugates are reversible transformations. 26. It also catalyzes the dehydrogenation of 2-Hydroxybutyrate, but it is a much poorer substrate than lactate. 27. Platinum, a chemically similar catalyst, catalyzes dehydrogenation of five-and six-member cyclic hydrocarbons into benzene. 28. One of the most common examples of carbocatalysis is the oxidative dehydrogenation of ethylbenzene to styrene discovered in the 1970s. 29. When catalyzing ammonia-borane dehydrogenation , the catalyst acts homogeneously at a 0.5 mol % catalyst loading. 30. "' Dehydrogenation "'is a chemical reaction that involves the removal of hydrogen from an organic molecule.