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Published on: August 12, 2019
Development of Triazinone-Based Condensing Reagents for Amide Formation
Kohei Yamada1, Mika Kota1, Kensuke Takahashi1
1Faculty of Pharmaceutical Sciences , Institute of Medical, Pharmaceutical, and Health Sciences Kanazawa University , Kakuma-machi , Kanazawa 920-1192 , Japan.
New triazinone-based reagents efficiently synthesize amides from carboxylic acids and amines. These novel condensing reagents show higher reactivity than existing alternatives, offering improved synthetic utility in organic chemistry.
Area of Science:
- Organic Chemistry
- Synthetic Chemistry
Background:
- Triazine derivatives are versatile building blocks in organic synthesis.
- Developing efficient and reactive condensing reagents is crucial for amide bond formation.
Purpose of the Study:
- To synthesize novel triazinone-based condensing reagents.
- To evaluate their efficiency and reactivity in amide synthesis.
Main Methods:
- Palladium-catalyzed O-N allylic rearrangement of a dichlorotriazine derivative.
- Regioselective substitution with alcohols and amines.
- Conversion to condensing reagents using N-methylmorpholine.
Main Results:
- Successfully synthesized novel chlorotriazinones and corresponding condensing reagents.
- Achieved good yields of amides via condensation of carboxylic acids and amines.
- Demonstrated higher reactivity compared to a known morpholinium chloride reagent.
Conclusions:
- The developed triazinone-based reagents are effective for amide synthesis.
- These reagents offer enhanced reactivity, presenting a valuable alternative for organic chemists.
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