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Derivate des Imidazols, XVII. Synthese und Eigenschaften von Dichlor(1,3‐dimethyl‐2‐imidazol‐2‐ylidenimino)‐phosphan – ein Methylenamino‐Substituent mit ungewöhnlichen Donoreigenschaften
Author(s) -
Kuhn Norbert,
Fawzi Riad,
Steimann Manfred,
Wiethoff Jörg
Publication year - 1996
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19961290418
Subject(s) - chemistry , substituent , medicinal chemistry , imidazole , nuclear magnetic resonance spectroscopy , cationic polymerization , stereochemistry , polymer chemistry
Imidazole Derivatives, XVII. – Synthesis and Properties of Dichloro(1,3‐dimethyl‐2‐imidazol‐2‐ylidenimino)phosphane – a Methylenamino Substituent with Uncommon Donor Properties Dichloro(1,3‐dimethyl‐2‐imidazol‐2‐ylidenimino)phosphane ( 5 ) is obtained from 1,3‐dimethyl‐2,3‐dihydro‐2‐trimethylsilyliminoimidazole ( 4 ) and PCl 3 in almost quantitative yield. Strong PN‐π interaction ( 5B ) is revealed by its X‐ray structure analysis [P(1)–N(1) 1.579(2) Å]. AlCI 3 causes chloride abstraction to give the cationic cyclophosphazane 8 identified by NMR spectroscopy.