Hindered rotation in paracyclophanes with substituents on the aromatic rings.
✍ Scribed by Masao Nakazaki; Kōji Yamamoto; Susumu Okamoto
- Publisher
- Elsevier Science
- Year
- 1969
- Tongue
- French
- Weight
- 211 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0040-4039
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Recently we reported that the NMR spectra of the alkyl N-methyl-N-arylsulfonylmethylcarbamates I -III showed only temperature dependence of the signal of the ester alkyl group (1). It was suggested that the barrier to internal rotation merely involved the ester group itself since the data then avail
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