Pentane 2,4-dibromo-2-methyl

To a solution of hexamethyldisilane (2.5 mmol) in HMPA (CAUTION— CANCER SUSPECT AGENT) (3 ml) at 0-5 °C was added methyl lithium (2.5 mmol, 1.5 m MeLi.LiBr complex in ether) dropwise. After being stirred for 3 min, the red solution was treated with Cul (2.5 mmol) in Me2S (1 ml), the resulting black reaction mixture was stirred for 3 min. and 2,3-dibromo-propene (1 mmol) was added rapidly via a syringe. The reaction mixture was allowed to warm to room temperature, and was stirred for 1.5 h. It was then poured into pentane (25 ml) and saturated ammonium chloride solution (25 ml, buffered to pH 8 by the addition of ammonium hydroxide), and the mixture was stirred vigorously for 1 h. The aqueous phase was re-extracted with pentane, and the combined organic extracts were dried. Removal of... 

Figure 1.7. Structural formula of 2-methyl-2,3-dibromopentane (a) pentane is the major chain therefore, there is a straight saturated five-carbon chain as the major backbone (b) 2-methyl- there is a methyl group on the number two carbon (c) -2,3-dibromo dibiomo means two bromine atoms, and they are on the number 2 and 3 carbons (d) the rest of the bonds are not specified therefore, they are all bonded to hydrogen thus we have 2-methyl-2,3-dibromopentane.

C6H12Br2 1,2-dibromo-3,3-dimethyl butane 640-21-1 301.65 21.161 2 8654 C6H13Br 2-bromo-3-methyl pentane 62168-41-6 186.68 9.535 2... 

C6H12Br2 1,5-dibromo-3-methyl pentane 4457-72-1 301.65 21.161 2 8657 C6H13Br 3-bronno-3-methylpentane 25346-31-0 180.95 9.167 2... 

The formation of 3,5-bis[(2-hydroxy-2-methyl)ethyl]anisole from 2,6-dibromo-anisole by way of a zirconocene intermediate has been reported (ref. 141). A pentane solution of n-butyllithium (4moles) was added to 1 mole of... 

Dibromo-4-methyl-3-(trimethylsilyloxy)pentane is cleanly silylated with TMSOTf through a preformed carbenoid species... 

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