title: Synthesis of Fischer type-carbene complexes containing a coordinated thioimidate structural motif.
abstract: This paper describes a tandem strategy to synthesize a series of new Fischer carbene complexes [(CO)(4)M=C[N-(CH(2))(4)-]CH=C(NRR')(SR'); M = Cr, W; R = Ar, R' = Me, -(CH(2))(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)(5)W=[N-(CH(2))(4)-]CH(2)C(S)NHPh], which reveals the pathway of this reaction.
authors: Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, C.P. 04360 México, DF México.
authors: Alberto
authors: A
authors: Cedillo-Cruz
authors: M Carmen
authors: MC
authors: Ortega-Alfaro
authors: José G
authors: JG
authors: López-Cortés
authors: Rubén Alfredo
authors: RA
authors: Toscano
authors: J Guillermo
authors: JG
authors: Penieres-Carrillo
authors: Cecilio
authors: C
authors: Alvarez-Toledano