Proton and carbon-13 NMR study of dimer dianions produced from 1,1-diphenylethylene derivatives.

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概要

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• <SUP>1</SUP>H and <SUP>13</SUP>C NMR spectra have been observed for the carbanions produced from 1,1-diphenylethylene derivatives. Among five precursors, three have been reduced to corresponding dimer dianions in contact with alkali metal in THF; however, the rest could not be dimerized. Failure in dimerization is controlled by a steric effect of substituents at the 2-position. DNMR measurements were also carried out for 1,1-di-<I>p</I>-tolylpropene dimer dianions. The results are discussed in terms of two internal rotations around the bonds between the C<SUB>1</SUB> and C<SUB>2</SUB>, and the C<SUB>1</SUB> and C<SUB>i</SUB> atoms.

• 公益社団法人 日本化学会の論文

著者

• Goto Kenji

  Department of Applied Chemistry, Nagoya Institute of Technology

関連論文

• Proton and carbon-13 NMR study of dimer dianions produced from 1,1-diphenylethylene derivatives.

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