Treatment a $β$ -keto ester 1 with a base and then with methyl iodide leads to product 3. The new carbon-carbon bond that is formed in this process is :

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D d
It is a nucleophilic addition reaction. The new bond would form at the most positive carbon. Therefore the new $C - C$ bond formed is bond $d$ .

Suggest Corrections

Similar questions

Q. How many of the following statments are correct regarding Claisen condensation reaction (when an ester is treated with a strong base)?
1. A proton is removed from the

α

-carbon to form a resonance stabilised carbanion of the ester.
2. Carbanion acts as a nucleophile in a nucleophilic acyl substitution reaction with another ester molecule.
3. A new

C - C

bond is formed.
4.

α, β

unsaturated product is obtained

A natural linear polymer of 2-methyl-1, 3-butadiene becomes hard on treatment with sulphur between 373 to 415 K and $- s - s -$ bonds are formed between chains. Write the structure of the product of this treatment?

Methyl alcohol when react with

H I

forms methyl iodide as a product.

Q. Assertion :"A golden yellow precipitate of lead iodide is formed when colourless lead nitrate solution is mixed with colourless solution of potassium iodide." So, it is a chemical change Reason: Formation of new products in the reaction with the precipitate indicates a chemical change

Write the balanced chemical equations for the following reactions-

(a) Sodium carbonate on reaction with hydrochloric acid in equal molar concentration gives sodium chloride and sodium hydrogen carbonate.

(b) Sodium hydrogen carbonate on reaction with hydrochloric acid gives sodium chloride, water and liberates carbon dioxide.

(c) Copper sulphate on treatment with potassium iodide precipitates cuprous iodide $({Cu}_{2} I_{2})$ , liberates iodine gas and also forms potassium sulphate.

Join BYJU'S Learning Program

Treatment a β-keto ester 1 with a base and then with methyl iodide leads to product 3. The new carbon-carbon bond that is formed in this process is :

The correct option is D dIt is a nucleophilic addition reaction. The new bond would form at the most positive carbon. Therefore the new C−C bond formed is bond d.

Treatment a $β$ -keto ester 1 with a base and then with methyl iodide leads to product 3. The new carbon-carbon bond that is formed in this process is :

The correct option is D d
It is a nucleophilic addition reaction. The new bond would form at the most positive carbon. Therefore the new $C - C$ bond formed is bond $d$ .