1000619-40-8

Basic information

• Product Name: C₂₀H₁₈O₆
• Synonyms: C₂₀H₁₈O₆
• CAS NO: 1000619-40-8
• Molecular Weight: 354.359
• Mol File: 1000619-40-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: C₂₀H₁₈O₆(CAS DataBase Reference)
• NIST Chemistry Reference: C₂₀H₁₈O₆(1000619-40-8)
• EPA Substance Registry System: C₂₀H₁₈O₆(1000619-40-8)

Safety Data

• Hazardous Substances Data: 1000619-40-8(Hazardous Substances Data)

Upstream product

• 675-10-5 4-hydroxy-6-methyl-2-pyron 
• 612-12-4 o-Xylylene dichloride 

Downstream Products

• 464-72-2 tetraphenylethane-1,2-diol 

Relevant articles and documents

Solid-state photocycloaddition of 6,6′-dimethyl-4,4′-[bis(methylenoxy)phenylene]-di-2-pyrones with benzophenone

Photocycloaddition reactions of 6,6′-dimethyl-4,4′-[bis(methylenoxy)phenylene]-di-2-pyrones (4a-c) with benzophenone (2a) by mixing in the solid state (solid solution) afforded the corresponding oxetane derivatives (5a-c; 1:2 adducts) with high site- and regioselectivity across the C5-C6 and C5′-C6′ double bonds in 4 via the triplet excited state of benzophenone. The oxetane formation proceeded more effectively in the solid state than in solution. The reaction mechanism was inferred by MO methods to be initiated by electrostatic interaction between the C6 position of 4a-c and the carbonyl oxygen of 2a in their ground states. The solid-state interaction may be enhanced by the electron density at the carbonyl oxygen of the triplet 2a. The transition state (TS) analysis of the [2+2] cycloaddition reactions also suggested some triplet complexes and high regioselectivity. The hydrogen-bonding interaction between 2a and 4a-c and the triplet reaction mechanism were also explained by the IR analyses and the quenching experiments, respectively.