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First Insertions of Carbene Ligands into Ge−N and Si−N Bonds
Author(s) -
ÁlvarezRodríguez Lucía,
Cabeza Javier A.,
GarcíaÁlvarez Pablo,
GómezGallego Mar,
Merinero Alba D.,
Sierra Miguel A.
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201700828
Subject(s) - carbene , chemistry , ring (chemistry) , nucleophile , atom (system on chip) , transition metal carbene complex , stereochemistry , insertion reaction , crystallography , medicinal chemistry , catalysis , organic chemistry , computer science , embedded system
The insertion of carbene ligands into Ge−N (three examples) and Si−N (one example) bonds has been achieved for the first time by treating Fischer carbene complexes (M=W, Cr) with bulky amidinatotetrylenes (E=Ge, Si). These reactions, which start with a nucleophilic attack of the amidinatotetrylene heavier group 14 atom to the carbene C atom, proceed through a stereoselective insertion of the carbene fragment into an E−N bond of the amidinatotetrylene ENCN four‐membered ring, leading to [M(CO) 5 L] derivatives in which L belongs to a novel family of tetrylene ligands comprising an ECNCN five‐membered ring.