71486-02-7

Usage

Uses

(2S)-1-Iodo-2,3-Dimethylbutane may be a useful reagent in organic synthesis.

Upstream product

• 79-29-8 2,3-dimethylbutane 

Downstream Products

• 68702-73-8 rac-(2,3-Dimethylbutyl)triphenylphosphonium iodide 
• 2638-57-5 brassicasterol 
• 1380442-17-0 (S)-(+)-(2,3-dimethylbutyl)triphenylphosphonium iodide 
• 68702-73-8 (R)-(-)-(2,3-dimethylbutyl)triphenylphosphonium iodide 
• 81481-19-8 6,6-ethylenedioxy-2α,3α-isopropylidenedioxy-22ξ-acetoxy-23ξ-phenylsulfonyl-24S-methyl-5α-cholestane 
• 68702-83-0 (S)-(2,3-dimethylbutylsulfonyl)benzene 
• 68702-84-1 (S)-(2,3-dimethylbutyl)(phenyl)sulfane 

Relevant academic research and scientific papers

Radical Yields in the Radiolysis of Branched Hydrocarbons: Tertiary C-H Bond Rupture in 2,3-Dimethylbutane, 2,4-Dimethylpentane, and 3-Ethylpentane

Gel permeation chromatography has been applied to iodine scavenging studies of the distribution of radicals produced in the radiolysis of symmetrically branched hydrocarbons 2,3-dimethylbutane, 2,4-dimethylpentane, and 3-ethylpentane. The principal iodides observed are those expected as a result of simple bond rupture. In the case of 2,3-dimethylbutane all five expected iodides are readily resolvable and it is shown that the loss of H from a tertiary position is favored over loss from a primary position by a factor of ～10. A similar ratio is also observed for 2,4-dimethylpentane. The higher ratio of 15 observed for 3-ethylpentane indicates a dependence on the number of tertiary sites on the alkane. The relative yield of ～3.3 for the loss of secondary and primary H atoms from 2,4-dimethylpentane and 3-ethylpentane is similar to that for normal alkanes, indicating a negligible effect of the adjacent tertiary carbon. In all three cases the rupture of terminal C-C bonds is relatively infrequent with C-C rupture occurring preferentially at the bonds adjacent to the tertiary carbon.

PHOTOLYSE DE HI DANS UNE MATRICE HYDROCARBONEE VITREUSE A 77 K

Stable products from the photolysis of HI in methyl-3 pentane (3 MP) or dimethyl-2,3 butane (23 DMB) quenched solid at 77 K are analyzed by capillary gas chromatography.Selective formation of a tertiary radical is proposed for the 23 DMB/HI system ; in 3 MP/HI, C-H bond rupture is also localized at the weakest tertiary bond, however the scission is not selective.