Hexamethylpentane
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| Surname | Hexamethylpentane | |||||||||
| other names |
2,2,3,3,4,4-hexamethylpentane |
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| Molecular formula | C 11 H 24 | |||||||||
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| Molar mass | 156.31 g mol −1 | |||||||||
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||
Hexamethylpentane is a symmetrically built aliphatic hydrocarbon and one of 159 structural isomers of undecane . The compound contains three quaternary carbon atoms, the middle carbon atom being substituted with two methyl and two tert- butyl groups . The connection was first described in 1983 by Christoph Rüchardt .
presentation
The representation can be obtained by reaction of 2-chloro-2,3,3-trimethylbutane with tert -butyllithium or advantageously by hydrogenation of 1,1-di (1,1-dimethylethyl) cyclopropane effected. The latter synthesis took place at 50 ° C. with a yield of 69%, so the compound is quite stable despite its very dense substitution on the backbone. The substance was obtained as a colorless, glass-like solid with a melting point of 64-66 ° C.
Individual evidence
- ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
- ^ A b Siegried Hellmann, Hans-Dieter Beckhaus, Christoph Rüchardt: Thermolabile hydrocarbons, XIX. Syntheses, spectra, structure and tension of highly branched pentanes. In: Chemical Reports . 116, 1983, pp. 2219-2237, doi : 10.1002 / cber.19831160614 .
- ↑ a b Lutz Fitjer, Hans-Jörg Scheuermann, Ulrich Klages, Detlef Wehle, David S. Stephenson, Gerhard Binsch: Sterically overloaded Cyclohexane, 3rd 4,4,8,8,12,12-Hexamethyltrispiro [2.1.2.1.2.1 ] dodecane and 4,4,8,8,9,9,10,10-octamethyldispiro [2.1.2.3] decane - two per (cyclo) alkylated cyclohexanes in twistboat conformation. In: Chemical Reports. 119, 1986, pp. 1144-1161, doi : 10.1002 / cber.19861190406 .