Which alkene reacts with bromine?

The electrophilic addition of bromine to ethene Alkenes react in the cold with pure liquid bromine, or with a solution of bromine in an organic solvent like tetrachloromethane. The double bond breaks, and a bromine atom becomes attached to each carbon.

What happens when Br2 reacts with an alkene?

Description: Treatment of alkenes with bromine (Br2) gives vicinal dibromides (1,2-dibromides). Notes: The bromines add to opposite faces of the double bond (“anti addition”). Sometimes the solvent is mentioned in this reaction – a common solvent is carbon tetrachloride (CCl4).

What is the theoretical yield of cyclohexene in moles?

One molecule of cyclohexanol should produce one molecule of cyclohexene. One mole (mol) of cyclohexanol should produce one mole of cyclohexene. If 2.05 g of cyclohexanol is used (use the actual amount used in your experiment) convert this to moles by dividing by the molecular weight of cyclohexanol (MW = 100.2 g/mol).

Does bromination yield more than one product?

Therefore bromination usually occurs selectively on the most reactive position (the position that forms the most stable carbon radical intermediate), and gives one major product exclusively, as the example here for bromination of isobutane.

What is the theoretical yield of cyclohexanol to cyclohexene?

In other words, 2.05 g of cyclohexanol should produce 1.68 g of cyclohexene. This is the best-case yield also known as the theoretical yield.

What product is formed when ethene reacts with bromine?

Ethene and bromine reaction Ethene reacts with liquid bromine to give 1,2-dibromoethane. Ethene and bromine reaction also gives a symmetrical alkyl halide compound. Two bromine atoms are attached to the two carbon atoms in the ethene molecule.

What is the Lindlar’s catalyst and where it is used give an example?

A mixture of Pd and CaCO3 or BaSO4, partially poisoned by the addition of PbCO3, S or quinoline is Lindlar’s catalyst. It is used for partial reduction of alkynes to cis-alkenes.