Flash photolysis of 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene (DDE) in the presence of oxygen. Formation of a highly unstable dioxetane | Health & Environmental Research Online (HERO)

Health & Environmental Research Online (HERO)

Print Feedback Export to File

This record has one attached file:

Citation
Tags

HERO ID

3064651

Reference Type

Journal Article

Title

Flash photolysis of 1,1-dichloro-2,2-bis(4-chlorophenyl)ethene (DDE) in the presence of oxygen. Formation of a highly unstable dioxetane

Author(s)

Pedersen, CL; Lohse, C

Year

1978

Is Peer Reviewed?

Journal

Tetrahedron Letters
ISSN: 0040-4039
EISSN: 1873-3581

Report Number

PESTAB/79/0061

Volume

Issue

6 References

Abstract

PESTAB. The photochemistry of DDE has been investigated and several reaction products identified. A flash photochemical study showed the formation of an intermediate later identified as the 1,2-dioxetane. Steady-state photolysis of DDE in benzene in the presence of air or oxygen gave photolysis of DDE in ethanol and cyclohexane. This compound was identified as 4,4'-dichlorobenzophenone. It was concluded from this study that 1,2-dioxetane, or a precursor of it, is formed in a reaction between excited DDE and ground state oxygen. This type of reaction appears to be unknown.