This paper describes a tandem strategy to synthesize a series of new Fischer carbene complexes [(CO)4MC[N–(CH2)4–]CHC(NRR′)(SR′); M = Cr, W; R = Ar, R′ = Me, –(CH2)2–] with a thioimide or thiazoline fragment, in which the sulfur or nitrogen atom is coordinated to a metal center, depending on the nature of alkylating groups included as R′. We have trapped by protonation the proposed intermediate as the thioamide 12 [(CO)5WC[N–(CH2)4–]CH2C(S)NHPh], which reveals the pathway of this reaction
本文介绍了一种串联策略,通过
硫代
亚胺或
噻唑啉片段合成一系列新的费歇尔碳烯配合物[(CO)4MC[N-(
CH2)4-]CHC(NRR′)(SR′);M = Cr, W; R = Ar, R′ = Me, -( )2-],其中
硫原子或氮原子与
金属中心配位,具体取决于作为 R′的烷基化基团的性质。我们通过质子化捕获了
硫代酰胺 12 [(CO)5WC[N-( )4-] C(S)NHPh],揭示了这一反应的途径。