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Accessing Low‐Valent Inorganic Cations by Using an Extremely Bulky N‐Heterocyclic Carbene
Author(s) -
Roy Matthew M. D.,
Lummis Paul A.,
Ferguson Michael J.,
McDonald Robert,
Rivard Eric
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.201703215
Subject(s) - carbene , transmetalation , steric effects , adduct , chemistry , lithium (medication) , reagent , medicinal chemistry , combinatorial chemistry , polymer chemistry , stereochemistry , organic chemistry , catalysis , medicine , endocrinology
The extremely bulky N‐heterocyclic carbene (NHC), ITr (ITr=[(HCNCPh 3 ) 2 C:]) featuring sterically shielding umbrella‐shaped trityl (CPh 3 ) substituents was prepared. This NHC features the highest percent buried volume (% V bur ) to date, and was used to form a thermally stable quasi one‐coordinate thallium(I) cation [ITr‐Tl] + . This Tl I adduct and the corresponding lithium complex [ITr ⋅ Li(OEt 2 )] + are versatile “all‐in‐one” transmetalation/ligation reagents for preparing low‐coordinate inorganic species inaccessible by pre‐existing routes.
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