1350889-82-5

Basic information

• Product Name: C₃₂H₂₂Cl₂O₄
• Synonyms: C₃₂H₂₂Cl₂O₄
• CAS NO: 1350889-82-5
• Molecular Weight: 541.43
• Mol File: 1350889-82-5.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₃₂H₂₂Cl₂O₄(CAS DataBase Reference)
• NIST Chemistry Reference: C₃₂H₂₂Cl₂O₄(1350889-82-5)
• EPA Substance Registry System: C₃₂H₂₂Cl₂O₄(1350889-82-5)

Safety Data

• Hazardous Substances Data: 1350889-82-5(Hazardous Substances Data)

Upstream product

• 1262616-91-0 (E)-3-(3-chlorobenzylidene)-4-chromanone 

Relevant articles and documents

Topochemical photodimerization of (E)-3-benzylidene-4-chromanone derivatives from β-type structures directed by halogen groups

Halogen substituent plays an important role in the crystalline packing of aromatic compounds. The [2+2] photocycloaddition of (E)-3-benzylidene-4- chromanones in the crystalline state was investigated, and halogen substitution has been adopted to organize molecules with proper arrangement for photodimerization. Not halogen bonds, but the electron-withdrawing property of halogen atoms can enhance the face-to-face π-π interactions. Therefore, F, Cl or Br substitution at the para position of phenyl gave rise to almost the same β-structures with face-to-face π-stacking. Only resulted β-structures can undergo photodimerization, which gave the syn-HH (syn-head-to-head) products with high regio-/stereoselectivity.