Issue 17, 2017

C4-Ferrocenylsilyl-bridged and -substituted N-heterocyclic carbenes: complexation of germanium chloride

Abstract

While the 1 : 1 reaction of C4-trichlorosilyl-functionalized N-heterocyclic carbene (NHC) (2) with [(η5-C5H4Li)2Fe]3[TMEDA]2 (3) gives C4-sila[1]ferrocenophane-substituted NHC (4), C4-ferrocenylsilyl-bridged bis-NHC (6) is synthesized by combining 3 with C4-chlorodimethylsilyl-functionalized NHC (5) in a 1 : 2 ratio, (compound 5 is prepared by reaction of the anionic N-heterocyclic dicarbene (NHDC) [:C{[N(2,6-Pri2C6H3)]2CHCLi}]n (1) with Me2SiCl2). In addition, ligand 4- and 6-based GeCl2 complexes (7 and 8) are also synthesized. Compounds 4–8 have been characterized by 1H, 13C, and 29Si NMR spectroscopy and single crystal X-ray diffraction.

Graphical abstract: C4-Ferrocenylsilyl-bridged and -substituted N-heterocyclic carbenes: complexation of germanium chloride

Supplementary files

Article information

Article type
Communication
Submitted
08 ม.ค. 2560
Accepted
16 ก.พ. 2560
First published
23 ก.พ. 2560

Dalton Trans., 2017,46, 5508-5512

C4-Ferrocenylsilyl-bridged and -substituted N-heterocyclic carbenes: complexation of germanium chloride

Y. Wang, H. P. Hickox, P. Wei and G. H. Robinson, Dalton Trans., 2017, 46, 5508 DOI: 10.1039/C7DT00066A

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