Parker, A. J. published the artcileE2C mechanism in elimination reactions. II. Substituent effects on rates of elimination from acyclic systems, SDS of cas: 594-81-0, the publication is Journal of the American Chemical Society (1971), 93(19), 4735-49, database is CAplus.
The effects of alkyl, aryl, benzyl, bromine, and carbomethoxy substituents on rates of bimol.β-eliminations are reported. A spectrum of transition states, ranging from E2H-like to E2C-like, is utilized and the response of the various transition states to substituent effects is very different. The E2C-like transition state is very product-like. E2C-like reactions give high yields of the most stable isomer (e.g., Saytzeff or trans-olefin) provided that the requirement of anti geometry of β-hydrogen and leaving group is not violated. Tetrabutylammonium acetate in acetone is an excellent base system for promoting fast clean β-elimination from secondary or tertiary acyclic systems.
Journal of the American Chemical Society 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, SDS of cas: 594-81-0.
Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary