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1999 organo-phosphorus compounds, nonmetal heterocycles organo-phosphorus compounds, nonmetal heterocycles S 0087 14 - 198 Diheteroanellated Azaphosphepines. — The first representatives of a novel heterocyclic system, pyrazolo[3,4-b]pyrrolo[3,4-e][1.4]azaphosphepines, are synthesized by cyclocondensation of azomethine (I) with dibromoarylphosphines (II) or phosphorus tribromide. — (TOLMACHEV, A. A.; PUSHECHNIKOV, A. O.; KROTKO, D. G.; IVONIN, S. P.; KOSTYUK, A. N.; Khim. Geterotsikl. Soedin. (1998) 9, 1275-1276; Inst. org. khim. Akad. nauk Ukr., Kiev 252660, Ukraine; RU) 1

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Page 1: ChemInform Abstract: Diheteroanellated Azaphosphepines

1999 organo-phosphorus compounds, nonmetal heterocycles

organo-phosphorus compounds, nonmetal heterocyclesS 0087

14 - 198Diheteroanellated Azaphosphepines. — The first representatives of anovel heterocyclic system, pyrazolo[3,4-b]pyrrolo[3,4-e][1.4]azaphosphepines, aresynthesized by cyclocondensation of azomethine (I) with dibromoarylphosphines(II) or phosphorus tribromide. — (TOLMACHEV, A. A.; PUSHECHNIKOV,A. O.; KROTKO, D. G.; IVONIN, S. P.; KOSTYUK, A. N.; Khim. Geterotsikl.Soedin. (1998) 9, 1275-1276; Inst. org. khim. Akad. nauk Ukr., Kiev 252660,Ukraine; RU)

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