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Synthesis, Structure, and Reactivity of Diphosphenes having a cis ‐Configuration
Author(s) -
Niecke Edgar,
Kramer Berthold,
Nieger Martin
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198902151
Subject(s) - ring (chemistry) , amine gas treating , analogy , reactivity (psychology) , chemistry , stereochemistry , aryl , crystallography , organic chemistry , philosophy , medicine , alternative medicine , alkyl , pathology , linguistics
The basic skeletons of the cis ‐ diphosphenes 3 are nearly C 2 ‐symmetric. Compounds 3 , which are very stable in pure form, are obtained from the aminophosphanes 1 via the diphosphanes 2 . The surprisingly short distance between the amine proton and the arene ring (ca. 270 pm) indicates a weakly attractive interaction, which may contribute to the stability of the cis configuration. In analogy to trans ‐diphosphenes, the cis ‐diphosphenes coordinate to metal complexes. R = t Bu, adamantyl, CEt 3 , C 6 H 2 i Pr 3 ; aryl C 6 H 2 t Bu 3 .