Aromatic nucleophilic substitution. 24. Stopped-flow kinetics of the formation and decomposition of 2,4- and 4,4-disubstituted Meisenheimer complexes in the reaction of 4-piperidino-1,3-dinitrophenanthrene with potassium methoxide in dimethyl sulfoxide-me
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概要
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The formation of 2,4-disubstituted anionic σ complex, followed by the formation of 4,4-disubstituted one was confirmed by means of absorption and NMR spectra in the reaction of 4-piperidino-1,3-dinitrophenanthrene with potassium methoxide in DMSO–CH<SUB>3</SUB>OH. The rates and activation parameters were determined by kinetic studies using stopped-flow and conventional spectrophotometers. It was found, compared with the previous results on the naphthalene system that the presence of H<SUP>5</SUP> of the title compound affects the rates differently.
- 公益社団法人 日本化学会の論文
著者
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Takahashi Hiroyuki
Department Of Applied Chemistry Faculty Of Science And Technology Keio University
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Sekiguchi Shizen
Department of Chemistry, Faculty of Engineering, Gunma University
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Sekiguchi Shizen
Department of Synthetic Chemistry
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Hiraide Takao
Department of Synthetic Chemistry
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Hashida Yohji
Department of Synthetic Chemistry
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