Looking at the major organic product of the reaction below, we can see that it is possible to produce this product in good yield with the right conditions and reagents.
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In organic chemistry, an important class of reactions are those that form carbon-carbon bonds, called C-C bond forming reactions. The product of these reactions typically have one or more new carbon-carbon bonds. When deciding which product is favored in a C-C bond forming reaction, we need to consider two things:
The strength of the C-C bond being formed: weaker bonds are favored
The stability of the products: more stable products are favored
The Major Product
In the case of the reaction shown below, we can see that both products have similar strengths of C-C bonds being formed. However, one product is much more stable than the other. The more stable product is the major product of the reaction.
The shown below is the typical organic reaction that takes place when heating a carboxylic acid with an excess of a strong base such as sodium hydroxide. The base deprotonates the carboxylic acid to form the corresponding carboxylate anion, which then tautomerizes to the more thermodynamically stable keto form. The products of the reaction are a salt and water.
In the reaction shown below, the major organic product is expected to be compound A.
Because this is an E1 elimination reaction, the first step involves breaking the bond between the leaving group ( chloride in this case) and the carbon atom to which it is attached. In the second step, the proton attached to carbon beta is lost, resulting in compound A.
In conclusion, the major organic product of the reaction shown below is A.