Spin trapping as applied to radicals produced by the thermal decomposition of di-t-butyl diperoxyoxalate(DBPO) in aromatic hydrocarbons.

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概要

• 論文の詳細を見る

• Di-<I>t</I>-butyl diperoxyoxalate (DBPO) was allowed to decompose at 40 °C in benzene and xylenes, and transient radicals were trapped by some nitroso compounds. By means of an ESR simulation technique, the trapped radicals were assigned. In benzene, <I>t</I>-butoxyl radicals were trapped. Exceptionally, when 1,3,5-tri-<I>t</I>-butyl-2-nitrosobenzene(<B>1</B>) was used, methoxyl radicals were trapped first, but the ESR signals changed with time and methyl radicals were finally trapped. In xylenes, monomethylbenzyl radicals were exclusively trapped by <B>1</B> and 2,4,6-trimethyl-l-nitrosobenzene(<B>2</B>). The hyperfine coupling constant (hfcc) of β-hydrogens exhibited a negative temperature dependence for adducts formed between <B>1</B> and benzyl radicals(<B>1-BZ</B>), while for adducts formed between <B>2</B> and benzyl radicals(<B>2-BZ</B>), a positive one.

• 公益社団法人 日本化学会の論文

著者

• Sueishi Yoshimi

  Department Of Chemistry Faculty Of Science Okayama University

• Yamamoto Shunzo

  Department Of Chemistry Faculty Of Science Okayama University

• Nishimura Norio

  Department Of Chemistry Faculty Of Science Okayama University

• Sueishi Yoshimi

  Department of Chemistry, Faculty of Science, Okayama University

• Yamamoto Shunzo

  Department of Chemistry, Faculty of Science, Okayama University

• Furui Seiji

  Department of Chemistry, Faculty of Science, Okayama University

• Matsumoto Yukinobu

  Department of Chemistry, Faculty of Science, Okayama University

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