1.2- Dichloro-3-methylbutane

What is the configuration of the following stereoisomer of 1,2-dichloro-2-methylbutane ... 

Assume that you need to prepare 4 methyl 2 pentyne and discover that the only alkynes on hand are acetylene and propyne You also have available methyl iodide isopropyl bromide and 1 1 dichloro 3 methylbutane Which of these compounds would you choose in order to perform your synthesis and how would you carry it out" ... 

The synthesis of 2,2-dimethylthietane—the malodorous anal secretion of the mink—includes a 1,4-elimination of a suitably substituted chlorothiol, which was prepared from l,3-dichloro-3-methylbutane (Eq. 14). 

It was shown in 1940 by Brown, Kharasch, and Chao that, during free radical chlorination of optically active 2-methyl-l-chlorobutane chloride, the product l,2-dichloro-2-methylbutane was racemic, implying that the intermediate... 

Problem 4.32 Give topological structural formulas for (a) propane, (h) butane, (c) isobutane, (d) 2,2-dimethylpropane, (e) 2,3-dimethylbutane, (/), 3-ethylpentane, (g) l-chloro-3-methylbutane, (h) 2,3-dichloro-2-methylpentane, (/) 2-chloro-2,4,4-trimethylpentane. -4... 

The next question that arises from this analysis is the origin of (CH3)2CHC=CH. One of the available starting materials is l,l-dichloro-3-methylbutane. It can be converted to (CH3)2CHC=CH by a double dehydrohalogenation. The complete synthesis is therefore ... 

Together with 1.4-dichloro-l,2,2-trifluoro-3-methylbutane (16 %) and 4-chloro-3.3.4-trifluoro-2-methyl-but-l-cnc (16%). 

Dichloro-3-methylbutane, 51 Dichloromethyllithium, 154 Dichloromethyl methyl ether, 69,154-... 

Ckromans. Ni(acac)2 catalyzes the cycloaddition of phenols and 1,3-dichloro-3-methylbutane (1) to form 2,2-dimethylchromans (2). The sjrnthesis involves... 

Aliphatic gem-dihalides require more vigorous conditions for hydrolysis than do the benzal halides. Examples are found in the treatment of certain 1,1-dichloroalkanes, like l,l-dichloro-3 methylbutane and 1,1-dichloro-3,3"dimethylbutane, with water and, in some cases, magnesium oxide for 4 hours at 200-300°. The aldehydes are formed in 60-96% yields (cf. method 222). 

C5H10CI2 1,1 -dichloro-2-methylbutane 23010-05-1 400.00 34.500 2 5425 C5H10N2O2 N-nitroso-N-propyl acetamide 67809-15-8 475.82 41.565 2... 

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