Differential photohydrodehalogenation reactivity of bromobenzenes (1,2,4-tribromobenzene, 1,2,3,5-tetrabromobenzene) and pentachlorobenzene: Sunlight-based remediation
✍ Scribed by Peter K. Freeman; Christian M. Haugen
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1998
- Tongue
- English
- Weight
- 210 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0268-2575
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✦ Synopsis
The photochemical dehalogenation of 1,2,4-tribromobenzene, 1,2,3,5tetrabromobenzene and pentachlorobenzene in open-air solutions of acetonitrile using natural and artiÐcial sunlight as the irradiation source has been investigated. The regiochemistry of mono-dehalogenation has been determined for 1,2, 4-tribromobenzene and 1,2,3,5-tetrabromobenzene. Pentachlorobenzene did not react. 1,2,4-Tribromobenzene yielded three products, 1,4-dibromobenzene, 1,3dibromobenzene and 1,2-dibromobenzene with isomer percentages of 52 ^1%, 39 ^2% and 9 ^1%, respectively. 1,2,3,5-Tetrabromobenzene yielded 1,3,5tribromobenzene, 1,2,4-tribromobenzene and 1,2,3-tribromobenzene with relative product percentages of 60 ^2%, 29 ^2%, 11 ^1%.
1998 SCI (