(•••) Suggest a bromoalkane and the conditions necessary to produce the alkenes shown.


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Verified step by step guidance

1. Identify the structure of the alkene shown in the image. Determine the position of the double bond and the number of carbon atoms in the alkene.
2. Consider the possible bromoalkanes that could lead to the formation of the identified alkene through an elimination reaction.
3. Recall that elimination reactions, such as E2 or E1, are commonly used to form alkenes from bromoalkanes.
4. Determine the conditions necessary for the elimination reaction. For E2 reactions, consider using a strong base and heat. For E1 reactions, consider using a polar protic solvent and heat.
5. Select the appropriate bromoalkane and reaction conditions that would favor the formation of the desired alkene.

Key Concepts

Bromoalkanes

Bromoalkanes are organic compounds that contain a bromine atom attached to an alkane chain. They are often used as starting materials in organic synthesis due to their reactivity. The presence of the bromine atom makes them susceptible to nucleophilic substitution and elimination reactions, which are key in producing alkenes.

Elimination Reactions

Elimination reactions involve the removal of a small molecule, such as HBr, from a larger molecule, resulting in the formation of a double bond. In the context of bromoalkanes, these reactions can be facilitated by strong bases, leading to the formation of alkenes. The most common elimination mechanism is the E2 mechanism, which is a concerted process that requires a strong base and often results in the formation of the most stable alkene.

Reaction Conditions

The conditions necessary for producing alkenes from bromoalkanes typically include the use of a strong base, such as potassium tert-butoxide or sodium ethoxide, and heat. These conditions promote the elimination reaction over substitution, favoring the formation of alkenes. Additionally, the choice of solvent and temperature can influence the reaction pathway and the stability of the resulting alkenes.