104654-87-7Relevant academic research and scientific papers
Electrooxidative Metal-Free Cyclization of 4-Arylaminocoumarins with DMF as C1-Source
Weng, Yiyi,Chen, Hantao,Li, Nanhui,Yang, Long,Ackermann, Lutz
supporting information, p. 2773 - 2777 (2021/05/03)
An environmentally-benign electrochemical approach for the construction of quinoline derivatives employing N,N-dimethylformamide (DMF) as the methine source has been devised by cyclization of 4-(phenylamino)-2H-chromen-2-ones. In a user-friendly undivided cell, 6H-chromeno[4,3-b]quinolin-6-ones were obtained under chemical oxidant-free and transition-metal-free conditions in 43–92% yields with high functional tolerance. (Figure presented.).
Synthesis and Desulphurisation of Substituted 12H--Benzopyranolbenzothiazin-6-ones
Reddy, B. Sucharita,Darbarwar, Malleshwar
, p. 377 - 379 (2007/10/02)
Nine substituted 12H--benzopyranobenzothiazin-6-ones have been prepared by condensation of the corresponding 4-hydroxycoumarins with 2-aminothiophenol in dimethyl sulphoxide and one of these subjected to desulphurisation reaction with Raney nickel forming 4-anilinocoumarin.Their spectral properties and physiological activity have been evaluated.
