Accession Number:

ADA210572

Title:

Convenient Unimolecular Sources of Aryloxyl Radicals. 1. Aryloxyoxalyl Chlorides

Descriptive Note:

Technical rept. no. 7, 30 Sep 1988-30 May 1989

Corporate Author:

MASSACHUSETTS UNIV AMHERST DEPT OF CHEMISTRY

Personal Author(s):

• Modarelli, David A.
• Rossitto, Frank C.
• Lahti, Paul M.

Report Date:

1989-05-30

Pagination or Media Count:

6.0

Abstract:

UV photolysis of readily synthesized aryloxyoxalyl chloride half- esters provides a new unimolecular source of aryloxyl radicals, as shown by ESR nd UV-vis spectroscopy. Although phenoxyl radicals have been generated and investigated for a long time, such studies have usually been carried out under solution phase bimolecular oxidative conditions, or by direct photolysis of phenols. We have recently had the occasion to desire a method for efficient unimolecular photochemical generation of phenoxyl and related aryloxyl radicals, and have found that aryloxyoxalyl chloride half-esters provide a readily available photochemical source of aryloxyl radicals. Synthesis chemistry.

Descriptors:

• *CHLORIDES
• *CHEMISTRY
• PHOTOCHEMICAL REACTIONS
• PHOTOLYSIS
• SYNTHESIS
• PHENOLS
• EFFICIENCY
• LONG RANGE(TIME)
• ULTRAVIOLET RADIATION
• SOURCES
• MOLECULES

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE