1257244-45-3Relevant academic research and scientific papers
Multicomponent synthesis of some benzo, pyrimido and pyrazolo fused heterocycles using [Nmp]H2Po4 as an efficient reaction medium
Kumari, Sudesh,Khurana
, p. 395 - 404 (2019/01/21)
An efficient synthesis of benzoxanthene, pyrimidoquinoline, pyrimidochromene and pyrazolopyridine fused heterocycles by condensation of aromatic aldehydes, 2- hydroxy-1,4-naphthoquinone/ 6-amino-1,3-dimethyl uracil/ 1,3-dimethyl barbituric acid/ 5-amino-3-methyl-1-phenylpyrazole and 5,5-dimethylcyclohexane-1,3-dione/5- methylcyclohexane-1,3-dione/ cyclohexane-1,3-dione/cyclopentane-1,3-dione has been developed using [NMP]H2PO4 as a highly efficient reaction medium and catalyst. All the reactions proceeded smoothly and gave corresponding products in high yield after a simple workup.
Application of cyclic-1,3-diketones in domino and multicomponent reactions: Facile route to highly functionalized chromeno[2,3-d]pyrimidinones and diazabenzo[b]fluorenones under solvent-free conditions
Kumar, Ram,Raghuvanshi, Keshav,Verma, Rajiv K.,Singh, Maya S.
scheme or table, p. 5933 - 5936 (2010/11/21)
A facile and efficient protocol for the synthesis of chromeno[2,3-d] pyrimidinones and diazabenzo[b]fluorenones has been developed by one-pot three-component cyclocondensation of aldehydes, cyclic-1,3-diketones and 1,3-dimethylbarbituric acid in the presence of InCl3 or P 2O5 under solvent-free conditions.
