Nitrogen Acyclic Gold(I) Carbenes: Excellent and Easily Accessible Catalysts in Reactions of 1,6-Enynes

被引:106
作者
Bartolome, Camino [2 ]
Ramiro, Zoraida [2 ]
Garcia-Cuadrado, Domingo [2 ]
Perez-Galan, Patricia [1 ]
Raducan, Mihai [1 ]
Bour, Christophe [1 ]
Echavarren, Antonio M. [1 ]
Espinet, Pablo [2 ]
机构
[1] Inst Chem Res Catalonia ICIQ, Tarragona 43007, Spain
[2] Univ Valladolid, Fac Ciencias, IU CINQUIMA Quim Inorgan, E-47071 Valladolid, Spain
关键词
N-HETEROCYCLIC CARBENE; SKELETAL REARRANGEMENT; METAL-COMPLEXES; ENYNES; ALKOXYCYCLIZATION; ISOCYANIDE; MECHANISM; CYCLOISOMERIZATIONS; CYCLIZATIONS; ARYLALKYNES;
D O I
10.1021/om901026m
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Complexes [AuCl{C(NHR)(NHR')}] and [AuCl{C(NHR)(NEt2)}] (R =Bu-t, p-Tol, Xylyl, p-C6H4-COOH, p-C6H4COOEt, R' = Me, Bu-n, Pr-i, (n)heptyl, p-Tol) have been prepared by reaction of the corresponding isocyanogold complexes [AuCl(CNR)] with either primary amines or diethylamine. All the prepared carbenes are reactive and highly selective catalysts for skeletal rearrangement, methoxycyclization of 1,6-enynes, and other mechanistically related gold-catalyzed transformations. Overall, these easily accessible nitrogen acyclic carbene (NAC) gold complexes were not second to NHC complexes and were advantageous to obtain different products.
引用
收藏
页码:951 / 956
页数:6
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