Cedillo-Cruz A, Ortega-Alfaro MC, López-Cortés JG, Toscano RA, Penieres-Carrillo JG, Alvarez-Toledano C. Synthesis of Fischer type-carbene complexes containing a coordinated thioimidate structural motif.
Dalton Trans 2012;
41:10568-75. [PMID:
22832666 DOI:
10.1039/c2dt31297b]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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.
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