Nagata came up with a method to purify mixtures of these substances by adding DBU to 1,2,3 - trimethylbenzene.
Using Danishefsky's dienes with these compounds in thermal Diels-Alder reactions results in the predominant trans product and a non-concerted mechanism. Nagata came up with a method to purify mixtures of these substances by adding DBU to 1,2,3 - trimethylbenzene. An impractical way to make these compounds is by pyrolytic dehydration or dehalogenation. Sarcosine forms a bridge over them in one reaction. Usually produced by the Hufmann-Kratschmer method, these participants in the Prato reaction can follow isolated pentagon rules and can have a few of their bonds broken to introduce small molecules via the open cage method. Consisting of tube, ellipsoid, and sphere shaped compounds, for 10 points, name these carbon molecules, including C60, which is called the buckyball.
Using Danishefsky's dienes with these compounds in thermal Diels-Alder reactions results in the predominant trans product and a non-concerted mechanism.
fullerenes [prompt on "buckyballs" or stuff like that]