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Published in 2018 at "Polycyclic Aromatic Compounds"
DOI: 10.1080/10406638.2016.1154579
Abstract: ABSTRACT A novel and clean one-pot synthesis of spiro[chromeno[2,3-c]pyrazole-4,3′-indoline]-2′,5(6H)-diones via cyclocondensation reaction of isatins, 1,3-cyclohexadiones, and pyrazolone in aqueous media using SBA-Pr-SO3H (sulfonic acid-functionalized mesoporous silica) as an efficient heterogeneous solid acid catalyst was reported.…
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Keywords:
one pot;
pot synthesis;
pyrazole indoline;
spiro chromeno ... See more keywords
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Published in 2017 at "Russian Journal of General Chemistry"
DOI: 10.1134/s1070363217070258
Abstract: A series of substituted 7H-furo[3,2-g]chromen-7-one and furo[3,2-g]chromeno[2,3-c]pyrazole derivatives (2–9) were synthesized by using 5-hydroxy-4-methoxy-7H-furo[3,2-g]chromen-7-one (5-hydroxybergapten) and 5-hydroxy-4,9-dimethoxy-7H-furo[3,2-g]chromen-7-one (5-hydroxyisopimpinellin) (1) as starting materials. Compound 1 reacted with amino acid esters to give the corresponding 5-N-amino acid…
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Keywords:
substituted furo;
furo chromeno;
egfr vegfr;
pyrazoline ... See more keywords