13-dipolar cycloaddition1,3-Dipolar cycloadditions of ( E )-7-(arylmethylidene)-6,7-dihydroindolizin-8(5 H )-one and ( E )-2-(arylmethylidene)-2,3-dihydro-1 H -pyrrolizin-1-one with azomethine ylide generated in situ by the reaction of 11 H -indeno[1,2- b ]quinoxalin-11-...
In this report, we have described a convenient and eco-compatible approach for synthesis of new hybrid spiro[indeno[1,2- b ]quinoxaline-[11,2′]-thiazolidine]-4′-ones ( 4a–k ) via multi-component reaction of indeno[1,2- b ]quinoxalinone, α-mercaptocarboxylic acids and various types ...
The 1,3-dipolar cycloaddition reaction of (E)-7-arylidene-3-(1H-benzotriazol-1-yl)-6,7-dihydroindolizin-8(5H)-one and azomethine ylide which was generatedin situby the reaction of 11H-indeno[1,2-b]quinoxalin-11-one and L-proline afforded novel 1'-aryl-3”-(1H-benzotriazol-1-yl)...
Some interesting pyrrole derivatives were synthesized in moderate to high yields by coupling of 4- hydroxyproline with isatins, 11H-indeno[1,2-b]quinoxalin-11-ones, quinones and 9H-fluoren-9-one, in the presence of catalytic amount of Alum supported on silica gel (Alum-SiO2), under microwav...
In this report, we have described a convenient and eco-compatible approach for synthesis of new hybrid spiro[indeno[1,2-b]quinoxaline-[11,2 ']-thiazolidine]-4 '-ones (4a-k) via multi-component reaction of indeno[1,2-b]quinoxalinone, alpha-mercaptocarboxylic acids and various types of ...
ChemInform Abstract: Synthesis of Some 11H-Indeno(1,2-b)quinoxalin-11-ones.doi:10.1002/chin.199406178pyrazine derivativesChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an ...
Synthesis of some 11 H -indeno[1,2- b ]quinoxalin-11-onespyrazine derivativesChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, ...
Dysprosium(III) triflate is found to catalyze efficiently the coupling of 4-hydroxyproline with indeno[1,2- b]quinoxalin-11-one and isatin derivatives under mild conditions to produce 11-(1 H-pyrrol-1-yl)-11 H-indeno[1,2- b]quinoxalin-11-one and 3-(1 H-pyrrol-1-yl)indolin-2-one...
Yadav JS,Reddy BVS,Jain R,Reddy CS.Dy(OTf)3 as a versatile catalyst for the synthesis of 3-pyrrolyl-indo- linones and pyrrolyl-indeno[1,2-b]quinoxalines[].Tetrahedron Letters.2007Yadav JS, Reddy BV, Jain R, Reddy CH (2007). Dy(OTf)3 as a versatile catalyst for the synthesis of...
Dy(OTf)3 as a versatile catalyst for the synthesis of 3-pyrrolyl-indolinones and pyrrolyl-indeno[1,2-b]quinoxalinesPyrroleIsatinsLanthanide triflateIndolinoneQuinoxalineDysprosium(III) triflate is found to catalyze efficiently the coupling of 4-hydroxyproline with mdeno[1,2-b]quinoxalin-11-one...