Intermediates in nucleophilic aromatic substitution. Part V. Kinetic versus thermodynamic control in the reactions of methoxide ion with nitrocyanoanisoles; rearrangement of 1,3-to 1,1-dimethoxycyclohexadienylides

Aromatic nucleophilic substitution VIII.

Aromatic nucleophilic substitution VIII. Stopped-flow kinetics of the transient 1,3-disubstituted anionic σ complex in the reaction of 1-piperidino-2,4-dinitronaphthalene with potassium methoxide

✍ S. Sekiguchi; T. Takei; T. Aizawa; K. Okada 📂 Article 📅 1977 🏛 Elsevier Science 🌐 French ⚖ 200 KB

Ever since Servis' first observed by NMR spectrometry that in DMSO much faster formation of 1,3\_disubstituted anionic o complex (hereinafter referred to as 1,3-adduct) from 2,4,6\_trinitroanisole (TNA) and 'OCH3 is followed by a much slower attack on the l-position, considerable attention has been