87694-37-9

Upstream product

• 606-23-5 1H-indene-1,3(2H)-dione 
• 1576-35-8 toluene-4-sulfonic acid hydrazide 

Downstream Products

• 87694-38-0 Indeno<1,2-d>-1,2,3-thiadiazol-8-on 
• 85662-98-2 3-(3',4'-dichlorophenyl)-indan-1-one 
• 85662-85-7 3-(4-fluorophenyl)-2,3-dihydro-1H-indene-1-one 
• 65565-21-1 3-(4-bromophenyl)-2,3-dihydro-1H-inden-1-one 
• 53786-92-8 3-(4-methoxyphenyl)-2,3-dihydro-1H-inden-1-one 
• 53786-91-7 3-(p-tolyl)-2,3-dihydro-1H-inden-1-one 
• 16618-72-7 3-phenyl-1-indanone 
• 92869-31-3 3--2-diazo-indanon-(1) 

Relevant academic research and scientific papers

Umpolung-like Cross-coupling of Tosylhydrazones with 4-Hydroxy-2-pyridones under Palladium Catalysis

Tosylhydrazones under palladium catalysis were found to perform cross-coupling reactions with 4-hydroxy-2-pyridones. The umpolung-like reactivity, between the α-carbon of tosylhydrazone and the 3-position of the heterocycle, which is observed in the obtai

Sulfur Compounds in Crude Oil, III - Dihydrodiindenothiophenes

Syntheses to the dihydrodiindenothiophenes 1 - 3 have been studied. 1-3 were prepared by thermolysis of 8H-indeno-1,2,3-thiadiazole (10) or 4H-indeno-1,2,3-thiadiazole (13) or by reduction of the corresponding diketones 17, 19, and 21 which were obtained by thermolysis of indeno-1,2,3-thiadiazol-8-one (16) or from 2,3-dichloroinden-1-one (23) with Na2S.Mechanisms with analogous intermediates explain the formation of the indenothiophenes. - Another synthesis of indenothiophene-10,11-dione (21) starts from 2,5-diphenyl-3,4-thiophenedicarboxylic acid (29). - 10,11-Dihydrodiindenothiophene (3) is the known sulfurization product of hydrindene, the structure of 3 is corrected.