Microwave induced synthesis of 4-hydroxy-3-methyl-7, 8-dihydroquinoline-5(6H)-one using proline catalyst

Sapkal Anjali 1, *, Kumar Rakesh 1 and Purude Abhijeet 2

1 Shri Jagdishprasad Jhabarmal Tibrewala University, Rajasthan, India.
2 Sinhgad College of Science, Maharashtra, India.
 
Review
World Journal of Biology Pharmacy and Health Sciences, 2024, 17(01), 114–116.
Article DOI: 10.30574/wjbphs.2024.17.1.0018
Publication history: 
 
Abstract: 
In the present investigation synthesis of 4-hydroxy-3-methyl-7,8-dihydroquinolin-5(6H)-one was successfully demonstrated from cyclohexane-1,3-dione using microwave heating using proline catalyst. The synthesis of Hexa-Hydro-Quinolone derivatives, carried out by sequential in situ, Michael Addition, Cyclisation, and Aromatization. A new protocol for one step synthesis of 4-hydroxy-3-methyl-7,8-dihydroquinolin-5(6H)-one was successfully demonstrated from cyclohexane-1,3-dione with 98% yield.
 
Keywords: 
Microwave reactions; Michael addition reaction; Quinolone; Proline
 
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