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Synthese, Struktur und dynamisches Verhalten von 1,3,5‐Triaza‐2,4‐diphospha‐1,4‐pentadienen
Author(s) -
Niecke Edgar,
Detsch Ralph,
Nieger Martin
Publication year - 1990
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.19901230425
Subject(s) - chemistry , stereochemistry , medicinal chemistry
Synthesis, Molecular Structure, and Dynamic Behaviour of 1,3,5‐Triaza‐2,4‐diphospha‐1,4‐pentadienes Chloro(arylimino)phosphane ( 1 ) reacts with the 1,3‐diaza‐2‐phosphaallylic system 3 to form 1,3,5‐triaza‐2,4‐diphospha‐1,4‐pentadienes Ar‐N=P‐N(R)‐P=N‐Ar (Ar = 2,4,6‐tBu 3 ‐C 6 H 2 ; R = tBu, 2,4,6‐iPrc3C 6 H 2 ) ( 4a‐c ). the molecular structure of 4a (“ Exo‐endo‐S conformation” ) as well as the dynamic behaviour of the compounds in solution are discussed. the observed temperature dependance of the NMR spectra of 4c was interpreted as a sigmatropic 1,3‐rearrangement followed by a P‐N rotation.