A facile synthesis of novel spiro-[indole-pyrazolinyl-thiazolidine]-2,4′-dione
A reaction of appropriate indol-2,3-diones with 4-aminoantipyrine has resulted in the formation of hitherto unknown 3-(2,3-dimethyl-5-oxol-phenyl-3-pyrazolin-4-yl-imino)-indol-2- ones in quantitative yields which upon cyclocondensation with mercaptoacetic acid afforded a series of new spiro heterocycles 3'-(2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl) spiro[3H-indol-3,2'-thiazolidine]-2,4'-diones.
Jain, Subhash C.,Sinha, Juhi,Bhagat, Sunita,Errington,Olsen, Carl E.
Synthesis of Some 4-(1,5-Disubstituted-2-oxoindolinylideneimino)-2,3-dimethyl-1-phenyl-δ3-pyrazolin-5-ones as Possible Pesticides
Several new 4-(1,5-disubstituted-2-oxoindolinylideneimino)-2,3-dimethyl-1-phenyl-Δ3-pyrazolin-5-ones (IIIa-c and IVa-c) have been synthesised and their structures assigned on the basis of analytical and spectral (IR, PMR) data.Their insecticidal, antibacterial and antifungal activities have also been studied.
Sengupta, Anil K.,Gupta, Anurag Ateet
p. 72 - 74
(2007/10/02)
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