54812-62-3

Upstream product

• 67-66-3 chloroform 
• 20697-18-1 4-nitro-benzaldehyde-(4-chloro-phenylhydrazone) 
• 2829-27-8 4-nitro-benzaldehyde phenylhydrazone 
• 555-16-8 4-nitrobenzaldehdye 
• 1073-69-4 N-4-chlorophenylhydrazine 

Downstream Products

• 861323-92-4 N-acetyl-N-(4-chloro-phenyl)-N'-(4-nitro-benzoyl)-hydrazine 
• 62-23-7 4-nitro-benzoic acid 
• 1204306-03-5 ethyl 2-{1-(4-chlorophenyl)-3-(4-nitrophenyl)-5,6,7,7a-tetrahydropyrrolo[1,2-d][1,2,4]triazol-7a-yl}acetate 
• 98321-17-6 C₁₃H₈ClN₃O₂ 
• 1354908-73-8 (3aS,6aS)-1-(4-chlorophenyl)-5,6a-dihydro-3-(4-nitrophenyl)-5-[(1R)-1-phenylethyl]pyrrolo[3,4-c]pyrazole-4,6(1H,3aH)dione 
• 1204306-02-4 ethyl 3-(2-(4-chlorophenyl)hydrazono)-3-(4-nitrophenyl)-2-(pyrrolidin-2-yliden)propanoate 
• 36583-96-7 C₁₅H₁₅ClN₄O₂ 

Relevant academic research and scientific papers

Synthesis and stereochemistry of some novel dihydropyrrolo[3,4-c]pyrazoles

Eleven novel dihydropyrrolo[3,4-c]pyrazole derivatives were obtained by the reaction of chiral (1R)-N-(1-phenylethyl)maleimide and C,N-aryl-substituted nitril-imines. The reaction afforded the cycloadducts as a regioisomeric mixture which can be separable in some cases. The structure and stereochemistry of cycloadducts were assigned on the basis of infrared (IR), 1H and 13C nuclear magnetic resonance (NMR), mass and X-ray spectra, optical rotation measurements, and CHN analyses.