Crown compounds contalnlng the cycloheptatrlene and tropyllum ion -unit were synthesized from 1,6-dlthlocyanatocycloheptatrlene We recently described the photochemlcal synthesis of 1,6-dlthlocyanatocycloheptatrlene (I) from benzocyclopropene and thlocyanogen and Its use as a starting material for s
The 15N NMR spectra of macrocyclic compounds containing the ferrocene unit
β Scribed by C. Dennis Hall; Alan P. Bell; Dorthy Z. Denney
- Publisher
- John Wiley and Sons
- Year
- 1981
- Tongue
- English
- Weight
- 145 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0749-1581
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β¦ Synopsis
Abstract
The synthesis of a ^15^N enriched macrocycle containing the ferrocene unit is descibed, and the ^15^N NMR spectra of the macrocycle and those of its complexes with some metallic cations are reported.
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Condensation of 1,1 -diacetylferrocene with o-azidobenzaldehyde under appropriate conditions leads either to the [5]-ferrocenophane 2 or the bis(azide) 3, as the only reaction products. Compound 2 undergoes an intramolecular aza-Wittig reaction to give the new type of cryptand 4. Bis(azide) 3 is con
N NMR spectroscopy was used to extend previous studies, by "C NMR and IR spectroscopy, of fused oxoheterocycles which contain the guanidine unit. These compounds fall into three clearly definable structural types, through-conjugated, ring-conjugated or imide-like, any or all of which may result from