Synthesis and characterization of 4,5-dihydro-1H-pyrazolo[3,4b][1,4]azaphosphinines

✍ Scribed by Andrei A. Tolmachev; Sergei I. Dovgopoly; Aleksandr N. Kostyuk; Ernest S. Kozlov; Aleksei O. Pushechnikov; Wolfgang Holzer

• Publisher: John Wiley and Sons
• Year: 1999
• Tongue: English
• Weight: 192 KB
• Volume: 10
• Category: Article
• ISSN: 1042-7163
• DOI: 10.1002/(sici)1098-1071(1999)10:5<391::aid-hc9>3.0.co;2-m

✦ Synopsis

indolines were shown to undergo phosphorylation with phosphorus(III) halides at the two nucleophilic carbon centers to give fused 1,4-azaphosphinine ring systems. Chemical properties of the synthesized compounds were characterized. For some representative compounds, detailed NMR spectroscopic investigations were performed, including the determination of 31 P, 1 H and 31 P, 13 C coupling constants.