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Synthesis and Reactivity of an Unusual Ferrocenophane Bis(carbene complex)
Author(s) -
Helten Holger,
Beckmann Manuela,
Schnakenburg Gregor,
Streubel Rainer
Publication year - 2010
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201000383
Subject(s) - chemistry , carbene , triethylamine , reactivity (psychology) , methylene , ring (chemistry) , stereochemistry , medicinal chemistry , photochemistry , crystallography , organic chemistry , catalysis , medicine , alternative medicine , pathology
Selective macrocyclization of 1,1′‐ferrocenediylbis(aminocarbene complex) 1 was achieved by its reaction with chloro(methylene)phosphane 2 and triethylamine at ambient temperature, thus yielding the novel diaminophosphane‐bridged [5]ferrocenophane bis(carbene complex) 3 . This trimetallic species, which combines the structural features of both ferrocenophane and Fischer carbene complex functional groups, is prone to undergo facile ring opening under mild conditions with formation of bis(2 H ‐azaphosphirene complexes) 6a , b and 2,3‐dihydro‐1,2,3‐azadiphosphete complex 7 . The single‐crystal X‐ray structures of 3 and 7 as well as the reaction courses are discussed.