Reaction Chart of Ester (R-COOR')
Esters are widely recognized for their pleasant fruity odors and are fundamental functional groups in Organic Chemistry for JEE, NEET, and Class 12 Boards.
Synthesized typically via Fischer Esterification, esters undergo a variety of chemical transformations. Key among these are Saponification (alkaline hydrolysis), reduction to alcohols or aldehydes, and nucleophilic substitution with Grignard reagents.
This reaction chart visualizes the most important synthetic pathways and cleavage reactions, essential for mastering organic conversions and quick revision before competitive exams.
Figure: Comprehensive Summary of Ester Chemical Properties
High-Yield Exam Takeaways
- Saponification: Basic hydrolysis of esters yields a carboxylate salt and an alcohol; it is an irreversible process used in soap making.
- Reduction Selectivity:
- LiAlH4 reduces esters to two primary alcohols.
- DIBAL-H (at -78°C) selectively reduces esters to Aldehydes.
- Grignard Reaction: Reaction with 2 equivalents of RMgX followed by hydrolysis yields a Tertiary Alcohol.
- Transesterification: Reacting an ester with an alcohol in the presence of an acid catalyst to form a different ester.
No comments:
Post a Comment