Tetramethylethylene, 97%

General References:

1. H. Niki.; P. D. Maker.; C. M. Savage.; L. P. Breitenbach.; M. D. Hurley. FTIR spectroscopic study of the mechanism for the gas-phase reaction between ozone and tetramethylethylene. J. Phys. Chem. 1987, 91 (4),941-946 .
2. Linus Pauling.; L. O. Brockway. Carbon—Carbon Bond Distances. The Electron Diffraction Investigation of Ethane, Propane, Isobutane, Neopentane, Cyclopropane, Cyclopentane, Cyclohexane, Allene, Ethylene, Isobutene, Tetramethylethylene, Mesitylene, and Hexamethylbenzene. Revised Values of Covalent Radii. J. Am. Chem. Soc. 1937, 59 (7),1223-1236 .
3. Precursor of the sterically hindered hydroborating reagent, thexylborane, introduced by Brown: J. Am. Chem. Soc., 94, 3561 (1972). For review of its chemistry, see: Synthesis, 77 (1974). This reagent should be freshly prepared since it rearranges on standing to 2,3-dimethyl-1-butylborane.