Butenandt2 has shown that a number of oxidizing agents, such as permanganate, potassium ferricyanide, perbenzoic acid and iodine with potassium acetate in alcoholic solution, convert rotenone into dehydrorotenone with a loss of two hydrogen atoms. Dehydrorotenone is a yellow crystalline compound melting at about 225'and differing widely from rotenone in most of its reactions. Compounds corresponding to dehydrorotenone are ...
![[1]Benzopyrano[3,4-b][1]benzopyran-12(6H)-one,9-hydroxy-2,3-dimethoxy-8-(3-methylbutyl)-结构式](https://image.chemsrc.com/caspic/323/6624-98-2.png)