Condensed 1,3,5-triazepines—II : The synthesis of 2,3-dihydro-1H-imidazo[1,2-a] [1,3,5]benzotriazepin-5(6H)-ones and -thiones
✍ Scribed by G. Doleschall; Gy. Hornyák; B. Ágai; Gy. Simig; J. Fetter; K. Lempert
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- French
- Weight
- 748 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0040-4020
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## Abstract (__R__)‐5‐(diallylamino)‐5,6‐dihydro‐4__H__‐imidazo[4,5,1‐__ij__]quinolin‐2(1__H__)‐one (__12b__) was prepared in 9% overall yield from 3‐aminoquinoline. Reaction of __12b__ in ethyl acetate with tritium gas in presence of a 5% platinum on carbon catalyst afforded a mixture of (__R__)‐5
## Abstract 2‐Aminobenzoic acid reacts readily, in the presence of triethylamine, with hydrazonoyl chlorides (**5a‐c**) (precursors of the reactive nitrile imine 1,3‐dipolar species) to afford high yields of the corresponding acyclic amidrazone adducts (**6a‐c**). The latter adducts undergo, in THF