81926-67-2

Upstream product

• 2058-74-4 1-methyl-1H-indole-2,3-dione 
• 83-07-8 4-amino-2,3-dimethyl-1-phenylpyrazolin-5-one 
• 81912-96-1 3-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-ylimino)-indolin-2-one 
• 77-78-1 dimethyl sulfate 
• 91-56-5 indole-2,3-dione 

Relevant academic research and scientific papers

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.

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.