1801-25-8

Upstream product

• 156360-95-1 2-(2,2-diphenylvinyl)benzoic acid 
• 23717-59-1 2,2-diphenyl-1,3-indanedione 
• 485-47-2 indan-1,2,3-trione hydrate 
• 71-43-2 benzene 
• 119-61-9 benzophenone 
• 61260-15-9 dimethyl (3-oxo-1,3-dihydroisobenzofuran-1-yl)phosphonate 

Downstream Products

• 135455-98-0 3,3'-diphenylspiro-3-one 
• 71824-24-3 2-(2-aminoethyl)-1H-isoindole-1,3(2H)-dione 
• 101-81-5 Diphenylmethane 
• 1437803-05-8 3-benzhydryl-3-hydroxy-2-phenylamino-2,3-dihydroisoindol-1-one 
• 1437802-97-5 4-benzhydryl-benzo[d][1,2]oxazin-1-one 
• 14980-51-9 10-Phenyl-10,11-dihydro-5H-dibenzocyclohepten-5-on 
• 23717-59-1 2,2-diphenyl-1,3-indanedione 
• 14659-84-8 2-(2,2-diphenyl-ethyl)-benzoic acid 

Relevant academic research and scientific papers

Organocatalytic Electrochemical C-H Lactonization of Aromatic Carboxylic Acids

An electrochemical strategy has been developed for radical arene carbon-oxygen bond formation. This reaction utilizes DDQ as a redox mediator, with inexpensive glassy carbon electrodes to facilitate an intramolecular lactonization of biphenyl-2-carboxylic

Facile synthesis of 3-(diarylmethylene)isobenzofuranones, 4-(diarylmethyl)-1(2H)-phthalazinones and diarylmethanes

Reflux of 2,2-diaryl-1,3-indanediones in ethyleneglycol with a catalytic amount of triethylamine affords 3-(diarylmethylene)isobenzofuranones in very good yields. The latter produces 4-diarymethyl-1(2H)-phthalazinones under reflux in hydrazine hydrate (99%), and diarylmethanes upon stirring in ethylenediamine.

Acid-Catalyzed Condensations of Ninhydrin with Aromatic Compounds. Preparation of 2,2-Diaryl-1,3-indanediones and 3-(Diarylmethylene)isobenzofuranones 1

Ninhydrin (1) reacts with aromatic compounds in acid solution to give condensation products. In H2SO4, 1 reacts with arenes to give 2,2-diaryl-1,3-indanediones (2a-f). In superacidic triflic acid (CF3SO3H, TfOH)

Wittig-Horner reaction of dimethyl phthalide-3-phosphonates with ketones: Synthesis of 3-ylidenephthalides and their conversion to 2,2-disubstituted indan-1,3-diones including spirocyclic compounds

The Wittig-Horner reaction of dimethyl phthalide-3-phosphonates with various ketones was investigated under the conditions: lithium bis(trimethylsilyl)amide (LHMDS) or sodium hydride in tetrahydrofuran, and cesium carbonate in isopropyl alcohol. The sequential treatment of the 3-ylidenephthalides with diisobutylaluminium hydride (DIBAL-H) and pyridinium dichromate (PDC) afforded 2,2-disubstituted indan-1,3-dione derivatives in modest to high overall yields.