Aryliminodimagnesium reagents. XV. Condensation with nitrobenzene. Formation of unsymmetrical azobenzens favored by long-chain p-alkoxy-substituted reagents.
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概要
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In the reaction of <I>p</I>-MeC<SUB>6</SUB>H<SUB>4</SUB>N(MgBr)<SUB>2</SUB> with <I>p</I>-alkoxynitrobenzene, no effect of alkoxyl chain length on the relative yields of azoxy and azo products was observed. In contrast, in the reaction of <I>p</I>-alkoxy-C<SUB>6</SUB>H<SUB>4</SUB>N(MgBr)<SUB>2</SUB> with <I>p</I>-nitrotoluene, C<SUB>12</SUB>- and C<SUB>18</SUB>-alkoxyl chains led to the corresponding unsymmetrical azobenzenes in unexpectedly high yields. This result, arising from efficient condensation and deoxygenation processes, was explained in terms of cooperation of reagent molecules through their aggregation assisted by a novel tying effect of their long chains.
- 公益社団法人 日本化学会の論文
著者
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Matsuo Koji
Department Of Cardiology And Nephrology Mie University Graduate School Of Medicine
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Yamauchi Akira
Department Of Biochemistry Kawasaki Medical Schoo
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Okubo Masao
Department of Chemistry, Faculty of Science and Engineering, Saga University
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