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The intermediate 1-bromo-3-chlorocyclobutane can also be prepared via a modified Hunsdiecker reaction from 3-chlorocyclobutanecarboxylic acid using mercuric oxide and bromine: [4] A synthetic approach to bicyclobutane derivatives involves ring closure of a suitably substituted 2-bromo-1-(chloromethyl)cyclopropane with magnesium in THF. [5]
All three have been synthesized by various routes: 1-Bromo-2-chlorobenzene: from 2-chloroaniline, via diazotization followed by a Sandmeyer reaction [1]; 1-Bromo-3-chlorobenzene: by (3-chlorophenyl)trimethylgermanium by electrophilic substitution [2] [better source needed]
2 Li + C 4 H 9 X → C 4 H 9 Li + LiX where X = Cl, Br. The lithium for this reaction contains 1-3% sodium. When bromobutane is the precursor, the product is a homogeneous solution, consisting of a mixed cluster containing both LiBr and LiBu. 1-Fluorobutane can be obtained by reacting 1-bromobutane with potassium fluoride in ethylene glycol. [5]
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2-Bromo-1-chloropropane, C 3 H 6 BrCl, is an alkyl halide. This simple compound has a chiral center and is used sometimes to determine the enantiomeric resolution of simple chromatographic methods. References
1-Bromo-3-chloropropane is an organohalogen compound with the formula Br(CH 2) 3 Cl. It is a colorless liquid, produced by free-radical addition of hydrogen bromide to allyl chloride. [1] It is used as an alkylating agent to install the –(CH 2) 3 Cl [2] [3] and –(CH 2) 3 – groups. [4] For example, it is a precursor to 4-chlorobutyronitrile.
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Cyclobutane is a cycloalkane and organic compound with the formula (CH 2) 4. Cyclobutane is a colourless gas and is commercially available as a liquefied gas. Derivatives of cyclobutane are called cyclobutanes. Cyclobutane itself is of no commercial or biological significance, but more complex derivatives are important in biology and ...