Richards, David Hugh published the artcileLinking reactions for the synthesis of head-to-head vinyl polymers, Name: 2,3-Dibromo-2,3-dimethylbutane, the publication is Chemical Communications (London) (1968), 1515-16, database is CAplus.
Anionic dimers were generated and linked to form head-to-head vinyl polymers in 1 operation by a process in which a tetrahydrofuran solution of the monomer was reacted with Li at ambient temperatures under an inert gas in the presence of a vicinal dihalide and the resulting polymer was isolated by precipitation with MeOH. The 1H 60-MHz. N.M.R. spectra obtained from α-methylstyrene and styrene polymers at the resonance position of aromatic and aliphatic protons were given and compared with the calculated ratio for the addition and head-to-head linking reactions. Comparison of the observed ratio with the calculated ratio for BrCH2CH2Br, BrCMe2CHMeBr, BrCMe2CMe2Br, 1,2-dibromocyclohexane, 1,2-dibromo-1,1,2,2-tetrafluoroethane, and BrCHPhCHPhBr showed that the predominance of head-to-head linking increases with substitution of the dibromoethanes.
Chemical Communications (London) 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 C6H12Br2, Name: 2,3-Dibromo-2,3-dimethylbutane.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary