90787-08-9

Upstream product

• 94940-89-3 ethyl α-acetyl-β-(2-methylindan-1,3-dione-2-yl)-β-phenylpropionate 
• 26576-79-4 2-Methyl-3-ethoxycarbonyl-4-phenyl-5-oxo-4,5-dihydro-1H-indeno<1,2-b>pyridine 
• 74-88-4 methyl iodide 
• 77-78-1 dimethyl sulfate 
• 80-48-8 methyl p-toluene sulfonate 

Downstream Products

• 137654-39-8 3-ethoxycarbonyl-1,2,4a-trimethyl-5-oxo-4-phenyl-4,4a,5,9b-tetrahydroindeno<1,2-b>pyridine 
• 137654-33-2 2,4a-dimethyl-5-oxo-4-phenyl-1H-2,3,4,4a,5,9b-hexahydroindeno<1,2-b>pyridine 
• 137654-34-3 2,4-dimethyl-5-oxo-4-phenyl-3H-4,4a,5,9b-tetrahydroindeno<1,2-b>pyridine 
• 94940-87-1 3-ethoxycarbonyl-2,4a-dimethyl-5-oxo-4-phenyl-1H-4,4a,5,9b-tetrahydroindeno<1,2-b>pyridine 
• 68063-31-0 ethyl 2-methyl-5-oxo-4-phenyl-5H-indeno[1,2-b]pyridine-3-carboxylate 
• 90787-11-4 2,4a-dimethyl-4-phenyl-5-oxo-4a,5-dihydroindeno<1,2-b>pyridine 
• 94940-89-3 ethyl α-acetyl-β-(2-methylindan-1,3-dione-2-yl)-β-phenylpropionate 
• 106237-19-8 1-phenyl-2-ethoxycarbonyl-3-hydroxy-9a-methyl-1,9a-dihydrofluorene-9-one 
• 106237-18-7 1-phenyl-2-ethoxycarbonyl-3-amino-9a-methyl-1,9a-dihydrofluorene-9-one 
• 94940-88-2 2,4a-Dimethyl-3-ethoxycarbonyl-5-hydroxy-4-phenyl-4,4a,5,9b-tetrahydro-1H-indeno<1,2-b>pyridine 
• 94940-87-1 2,4a-Dimethyl-3-ethoxycarbonyl-4-phenyl-5-oxo-4,4a,5,9b-tetrahydro-1H-indeno<1,2-b>pyridine 
• 94940-86-0 2,4a-Dimethyl-4-phenyl-5-oxo-4a,5-dihydro-4H-indeno<1,2-b>pyridine-3-carboxylic Acid 
• 94940-90-6 2-methyl-3-ethoxycarbonyl-4-phenyl-5-oxoindeno<1,2-b>pyridine oxime 

Relevant academic research and scientific papers

SYNTHESIS OF 1,9a-DIHYDRO-9a-SUBSTITUTED FLUORENONES AND THEIR 4-AZA ANALOGUES

Cyclization of 2,2-disubstituted indan-1,3-dione with CH3COONH4 yields 9a-substituted 1,9a-dihydrofluorenone and 9H-4a,5-dihydroindeno(1,2-b)pyridine derivatives

C- AND N-ALKYLATION OF 4,5-DIHYDRO-1H-INDENOPYRIDINE DERIVATIVES

2-Methyl-4-aryl-5-oxo-4,5-dihydro-1H-indenopyridine derivatives react with methyl iodide in an aprotic medium in the presence of alkaline agents to give C- and N-alkylation products, viz., 2,4a-dimethyl- and 1,2-dimethyl-4-aryl-5-oxo-4,5-dihydroind