Novel Meisenheimer Complexes by the Reaction of 4,6-Dinitrobenzofuroxan with Pyridinium Ylides
✍ Scribed by Prof. Dr. H.-J. Niclas; J. Kind; M. Ramm
- Book ID
- 105353962
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 355 KB
- Volume
- 333
- Category
- Article
- ISSN
- 1615-4150
No coin nor oath required. For personal study only.
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## Abstract Reactions of DNBF with a series of 2‐aminothiazoles (**1 a**–**f**) to afford thermodynamically stable __C__‐bonded σ‐adducts have been investigated in acetonitrile. A most significant finding emerged on recording NMR spectra immediately after mixing of equimolar amounts of DNBF and the
## Abstract A new reaction of pyridinium ylide (**4**) with 2,4,6‐trinitrofluorobenzene leading to stable negatively charged heptatriene moiety (**6**) is described. This reaction proceeds via a new route of decomposition of intermediate σ‐complex (**5**) occurring with the formation of ethylfluoro
A hydride Meisenheimer complex of 2,4,6-trinitrotoluene (TNT) (TNTH-) was synthesized using tetramethylammonium octahydroborate. TNT and TNTH-(as the tetramethylammonium salt) were analyzed by direct exposure probe mass spectrometry using electron impact (EI), chemical ionization (CI) and negative-i