![Illustrated Glossary of Organic Chemistry - Claisen condensation; Claisen reaction; mixed Claisen condensation; crossed Claisen condensation Illustrated Glossary of Organic Chemistry - Claisen condensation; Claisen reaction; mixed Claisen condensation; crossed Claisen condensation](http://www.chem.ucla.edu/~harding/IGOC/C/claisen_condensation02.png)
Illustrated Glossary of Organic Chemistry - Claisen condensation; Claisen reaction; mixed Claisen condensation; crossed Claisen condensation
Building Congested Ketone: Substituted Hantzsch Ester and Nitrile as Alkylation Reagents in Photoredox Catalysis | Journal of the American Chemical Society
![Treatment a beta - 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 : Treatment a beta - 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 :](https://haygot.s3.amazonaws.com/questions/207396.png)
Treatment a beta - 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 :
![Illustrated Glossary of Organic Chemistry - Claisen condensation; Claisen reaction; mixed Claisen condensation; crossed Claisen condensation Illustrated Glossary of Organic Chemistry - Claisen condensation; Claisen reaction; mixed Claisen condensation; crossed Claisen condensation](http://www.chem.ucla.edu/~harding/IGOC/C/claisen_condensation03.png)
Illustrated Glossary of Organic Chemistry - Claisen condensation; Claisen reaction; mixed Claisen condensation; crossed Claisen condensation
![organic chemistry - How can a ketone be enantioselectively reduced, in the presence of an ester? - Chemistry Stack Exchange organic chemistry - How can a ketone be enantioselectively reduced, in the presence of an ester? - Chemistry Stack Exchange](https://i.stack.imgur.com/l3BVf.png)