[GRAPHICS]Dispiro[2.1,3.2]decane, the first of the five possible dispirodecanes constituted from one three-membered, one four-membered, and one five-membered ring to be synthesized, has been prepared efficiently in four steps from methylenecyclopropane and again in five steps from methylenecyclobutane.
[GRAPHICS]Dispiro[2.1,3.2]decane, the first of the five possible dispirodecanes constituted from one three-membered, one four-membered, and one five-membered ring to be synthesized, has been prepared efficiently in four steps from methylenecyclopropane and again in five steps from methylenecyclobutane.