123-48-8

Usage

Uses

Used in Chemical Synthesis:
2,2,4,6,6-Pentamethyl-3-heptene is used as a key intermediate in the preparation of various alkyl derivatives. These derivatives find applications in the synthesis of complex organic molecules, pharmaceuticals, and other specialty chemicals.
Used in the Preparation of 2,4,4-Trimethyl-1-pentene:
2,2,4,6,6-Pentamethyl-3-heptene serves as a starting material for the synthesis of 2,4,4-trimethyl-1-pentene, which is an important compound in the production of various chemicals and materials. This application highlights the versatility of 2,2,4,6,6-pentamethyl-3-heptene in chemical synthesis and its potential to contribute to the development of new products.

InChI:InChI=1/C12H24/c1-10(8-11(2,3)4)9-12(5,6)7/h8H,9H2,1-7H3/b10-8-

Upstream product

• 105902-93-0 2,2,4,6,6-pentamethyl-heptan-3-ol 
• 115-11-7 isobutene 
• 67-56-1 methanol 
• 100386-42-3 4-chloro-2,2,4,6,6-pentamethylheptane 
• 75-89-8 2,2,2-trifluoroethanol 

Downstream Products

• 590-50-1 4,4-dimethyl-pentan-2-one 
• 101873-28-3 2-tert-butyl-2,4,4-trimethyl-valeraldehyde-(2,4-dinitro-phenylhydrazone) 
• 4436-99-1 dineopentyl ketone 
• 5340-83-0 (+/-)-2-tert-butyl-2,4,4-trimethyl-valeric acid 
• 75-98-9 Trimethylacetic acid 

Relevant academic research and scientific papers

The Grunwald-Winstein relationship in the solvolysis of crowded tertiary alkyl chlorides. Hindered hydration and hydrophobic effect

Various highly crowded tertiary alkyl chlorides having a neopentyl or a (1-adamantyl)methyl substituent on the reaction center were subjected to solvolysis rate studies, and the Grunwald-Winstein (GW) type relationship with respect to the YCl scale was examined. Analyses of the plots showed that these bulky substituents efficiently preclude the nucleophilic solvent participation from the rear side and that the data points for non-aqueous protic solvents give linear GW type plots. On the other hand, increased crowding causes considerable downward dispersions of the data points in aqueous mixtures of ethanol, acetone and 1-propanol. The magnitude of the downward dispersion increases in this order, giving a curvature with a downward bulge in the GW type relationship. Aqueous mixtures of the smallest alcohol, methanol, on the other hand, give only slight downward dispersions of the data points, which constitute a linear GW type plot. These results can be explained in terms of two causes. First, structural crowding makes the transition state of ionization less susceptible to the Bronsted base-type hydration to the β-hydrogens than 1-chloroadamantane as the standard of the YCl scale. Second, with highly hydrophobic substrates the first solvation shell in aqueous ethanol is expected to become more ethanol rich than the bulk phase, causing less easy ionization of the substrate. The rate data can be semiquantitatively analyzed by using Hansch's hydrophobicity parameters. The present anomalies found in solvolysis reactions are regarded as a kinetic version of Wepster's observations of the solvent effects on the magnitude of Hammett σ constants of bulky alkyl groups. Copyright

Olefin oligomerization via new and efficient Br?nsted acidic ionic liquid catalyst systems

Olefin oligomerization reaction catalyzed by new catalyst systems (a Br?nsted-acidic ionic liquid as the main catalyst and tricaprylylmethylammonium chloride as the co-catalyst) has been investigated. The synthesized Br?nsted acidic ionic liquids were characterized by Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV), 1H nuclear magnetic resonance (NMR), and 13C NMR to analyze their structures and acidities. The influence of different ionic liquids, ionic liquid loading, different co-catalysts, catalyst ratios (mole ratio of ionic liquid to co-catalyst), reaction time, pressure, temperature, solvent, source of reactants, and the recycling of catalyst systems was studied. Among the synthesized ionic liquids, 1-(4-sulfonic acid)butyl-3-hexylimidazolium hydrogen sulfate ([HIMBs]HSO4) exhibited the best catalytic activity under the tested reaction conditions. The conversion of isobutene and selectivity of trimers were 83.21% and 35.80%, respectively, at the optimum reaction conditions. Furthermore, the catalyst system can be easily separated and reused; a feasible reaction mechanism is proposed on the basis of the distribution of experimental products.