Premium
Synthesis of New Dipyrido‐Annulated N ‐Heterocyclic Carbenes with Aryl Substituents
Author(s) -
Maeta Naoto,
Yamamoto Junki,
Fukuen Shinichi,
Shang Rong,
Yamamoto Yohsuke
Publication year - 2015
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201500565
Subject(s) - carbene , deprotonation , aryl , chemistry , trifluoromethyl , ligand (biochemistry) , medicinal chemistry , derivative (finance) , stereochemistry , catalysis , organic chemistry , ion , alkyl , biochemistry , receptor , financial economics , economics
4,8‐Aryl‐substituted 2,10‐di‐ tert ‐butyldipyrido[1,2‐c;2′,1′‐e]‐imidazolium salts were synthesized from a newly prepared dibromo‐precursor by use of Suzuki‐Miyaura coupling. The corresponding carbenes were generated from the imidazolium salts by deprotonation. The trifluoromethyl‐substituted derivative ( 10a ) was trapped by AuCl(SMe 2 ) to give an N ‐heterocyclic carbene‐coordinated gold(I) complex ( 12a ), in which the central Au I atom is well protected by the aryl‐substituents of the NHC ligand.