mannich reaction मीनिंग इन हिंदी

उदाहरण वाक्य

1. The Mannich reaction is also considered a condensation reaction.
2. Mannich reaction with dimethylamine and formaldehyde was described.
3. Overman has also worked extensively on the aza-Cope-Mannich reaction, originally designed
4. A related reaction is the Mannich reaction.
5. Like the Mannich reaction, aldehydes give good yields while ketones tend to give lower conversion.
6. This is suitable for cleaving glycols and alpha-hydroxy ketones in ring opening and Mannich reaction.
7. In the Mannich reaction, primary or secondary amines or ammonia, are employed for the activation of formaldehyde.
8. Gramine, a useful synthetic intermediate, is produced via a Mannich reaction of indole with dimethylamine and formaldehyde.
9. Additional reactions include aldol reactions, Mannich reaction, Michael reaction, amination, ?-oxyamination, and ?-halogenation.
10. The Mannich reaction is an example of nucleophilic addition of an amine to a carbonyl group followed by dehydration to the Schiff base.