585 / | HD | CHEMISTRY OF HYDROCARBON COMPOUNDS |
500 | DF | UNSATURATED COMPOUND SYNTHESIS {14} |
654 | DF | .~ By dehydrogenation {5} |
656 | DF | .~.~ Using acceptor, e.g., hydrogen-exchange disproportionation, etc. {2} |
658 | .~.~.~ Elemental O or S acceptor with extraneous nonhydrocarbon agent, e.g., catalyst, etc. |