Sergienko, S. R. published the artcileTransformations of diene compounds in the presence of oxide catalysts. Transformations of 2,3-dimethyl-1,3-butadiene on aluminosilicate, Safety of 2,3-Dibromo-2,3-dimethylbutane, the publication is Doklady Akademii Nauk SSSR (1953), 803-6, database is CAplus.
cf. C.A. 48, 11290g. Passage of 2,3-dimethyl-1,3-butadiene over pelleted aluminosilicate at 250° (at 200° little reaction takes place, while above 250° much decomposition occurs) gave 7-10% C5-hydrocarbons and 35-40% dimeric products, the remainder being trimers and higher condensation products. The identified products were 2,3-dimethyl-2-butene, 2,3-dimethylbutane, apparently cyclic dimers, b. 187-95°, and higher products. The fresh catalyst is gradually coated not with C but with a hydrocarbon CnH2n-18, a resinous solid, the composition of which was between a pentamer and a hexamer of the diene.
Doklady Akademii Nauk SSSR published new progress about 594-81-0. 594-81-0 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 2,3-Dibromo-2,3-dimethylbutane, and the molecular formula is C3H8N2S, Safety of 2,3-Dibromo-2,3-dimethylbutane.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary