878733-86-9Relevant academic research and scientific papers
Synthesis of Flavanone and Quinazolinone Derivatives from the Ruthenium-Catalyzed Deaminative Coupling Reaction of 2′-Hydroxyaryl Ketones and 2-Aminobenzamides with Simple Amines
Gnyawali, Krishna,Kirinde Arachchige, Pandula T.,Yi, Chae S.
supporting information, (2022/01/15)
The cationic Ru–H complex [(C6H6)(PCy3)(CO)RuH]+BF4– (1) with 3,4,5,6-tetrachloro-1,2-benzoquinone (L1) was found to be a highly effective catalyst for the deaminative coupling reaction of 2′-hydroxyaryl ketones with simple amines to form 3-substituted flavanone products. The analogous deaminative coupling reaction of 2-aminobenzamides with branched amines directly formed 3,3-disubstituted quinazolinone products. The catalytic method efficiently installs synthetically useful flavanone and quinazolinone core structures without employing any reactive reagents.
Ultrasound-based approach to spiro-2,3-dihydroquinazolin-4(1H)-ones: Their in vitro evaluation against chorismate mutase
Rambabu,Kiran Kumar,Yogi Sreenivas,Sandra, Sandhya,Kandale, Ajit,Misra, Parimal,Basaveswara Rao,Pal, Manojit
supporting information, p. 495 - 501 (2013/02/23)
Amberlyst-15 has been identified as a green and reusable catalyst in the synthesis of spiro 2,3-dihydroquinazolin-4(1H)-ones under ultrasound irradiation at room temperature. The reaction can be performed in an open flask as the conversion was found to be not sensitive to the presence of air or atmospheric moisture. The methodology was found to be general and a wide variety of spiro 2,3-dihydroquinazolin-4(1H)-ones were prepared from 2-aminobenzamides and cyclic ketones within a few minutes in quantitative yields. The products isolated do not require any chromatographic purification. This method provides advantages such as shorter reaction time, high yields of products, and simple operational procedures. Some of the compounds showed chorismate mutase inhibitory properties when tested in vitro.
