## Abstract The reaction of phosphorus tribromide with phenylhydrazones of heterocyclic aldehydes leads to formation of a new phosphorus‐containing heterocyclic system—heterocondensed 1,2,3‐diazaphosphorines. Properties of the phosphorus‐containing heterocyclic compounds that have been synthesized
Heterocondensed 1,2,3-diazophosphorines
✍ Scribed by S. P. Ivonin; A. A. Chaikovskaya; T. N. Kudrya; T. E. Terikovskaya; A. A. Tolmachev
- Book ID
- 105533595
- Publisher
- Springer US
- Year
- 1998
- Tongue
- English
- Weight
- 113 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0009-3122
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📜 SIMILAR VOLUMES
## Abstract A reaction of phosphorus tribromide with a compound containing two 2,5‐dimethyl‐1‐arylpyrrolyl‐3 residues bound through a phosphorus atom gave rise to a new phosphorus‐containing heterocyclic system, 1,4‐diphosphinine. The new products thus obtained have been characterized and described
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## Abstract Reaction of 2‐aminopyrazine 1 with isothiocyanate, isocyanate or dithioketal reagent furnished pteridines **3,4** in good yield. Thioxo compound **3a** was chlorinated, methylated and subsequently displaced by amines. A simple one‐step synthesis of heterocondensed pteridines **8–13** by