4721-02-2

Basic information

• Product Name: 1,2-Diphenylethene-1,2-diol
• Synonyms: 1,2-Diphenyl-1,2-ethenediol;1,2-Diphenylethene-1,2-diol;Isobenzil;Stilbene-α,β-diol
• CAS NO: 4721-02-2
• Molecular Formula: C₁₄H₁₂O₂
• Molecular Weight: 0
• Mol File: 4721-02-2.mol
• Article Data: 1

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 1,2-Diphenylethene-1,2-diol(CAS DataBase Reference)
• NIST Chemistry Reference: 1,2-Diphenylethene-1,2-diol(4721-02-2)
• EPA Substance Registry System: 1,2-Diphenylethene-1,2-diol(4721-02-2)

Safety Data

• Hazardous Substances Data: 4721-02-2(Hazardous Substances Data)

Upstream product

• 134-81-6 benzil 

Downstream Products

• 21324-77-6 (4,5-diphenyl-oxazol-2-yl)-cyanamide 
• 78502-13-3 2,3,11,12-Tetraphenyl-2,3,11,12-didehydro<18>krone-6 
• 77325-94-1 tetraphenyl-diene-24-crown-8 
• 1312947-71-9 2-imino-3-(-1-oxo-3,4-diphenyl-1H-isochromen-6-yl)thiazolidin-5-one 
• 90193-47-8 cis-syn-cis-2,3,14,15-Tetraphenyl-1,4,7,10,13,16,19,22-octaoxacyclotetracosan 
• 90193-48-9 cis-anti-cis-2,3,14,15-Tetraphenyl-1,4,7,10,13,16,19,22-octaoxacyclotetracosan 
• 72638-74-5 cis-syn-cis-2,3,11,12-Tetraphenyl-1,4,7,10,13,16-hexaoxacyclooctadecan 
• 72690-79-0 cis-anti-cis-2,3,11,12-Tetraphenyl-1,4,7,10,13,16-hexaoxacyclooctadecan 

Relevant articles and documents

Reduction of Unsymmetrical Benzils Using Sodium Dithionite

Contrary to a previous report, reduction of unsymmetrical benzils by sodium dithionite (sodium hydrosulfite) in general yields a mixture of isomeric benzoins.Whereas the reduction of aldehydes and ketones by dithionite apparently takes place by a nucleophilic addition mechanism, the reduction of benzils proceeds by an electron-transfer mechanism.The initial product of the reduction is the (Z)-α,α'-stilbenediol which is produced stereospecifically.The ultimate benzoin products, then, result from the two different modes of ketolization of the stilbenediol intermediate.