Formation of multifunctional ligands by nucleophilic addition of alcohols and thiols to the alkyne groups in compound C5H5FeC5H4CCSCCH: Reactivity studies

Synthetic and Structural Study on Orthometallated Ferrocene Complexes: Non‐Planar Metallabenzene and Five‐Membered Metallacycle Complexes with Closed Os3 Triangles

“…This is followed by initial coordination of Te to one of the Os atoms ( B ) and subsequent migration of Te to the Os 3 core to give D via C . This initial coordination was reported by Delgado et al, whereby FcC≡CSC≡CFc reacts by C≡C coordination followed by S–C cleavage , . Orthometallation of a ferrocene unit in D with loss of CO leads to the formation of 1 .…”

Ferrocenyl‐Substituted Metallacycles of Titanocenes: Oligocyclopentadienyl Complexes with Promising Properties

“…[8] To date, the structures of several monoferrocenyl-substituted acetylenes coordinated to different metal carbonyls have been described. [9] In 1967, King and co-workers reported a diferrocenylacetylene cobalt carbonyl complex, [10] but its molecular structure was not verified by Xray analysis. Mach and co-workers synthesized and charac-terized titanocene complexes with the monoferrocenyl-substituted alkynes FcCCR (R = SiMe 3 , Ph).…”

Hydrosilylation of Ferrocenylalkyne−Dicobalthexacarbonyl Complexes. Model Reactions for the Synthesis of Organometallic Dendrimers

“…Thinking that steric reasons might be responsible for this failure, we carried out an analogous reaction using the cobaltcarbonyl complex containing the terminal acetylene ligand FcCtCH. Thus, a mixture of [{Co 2 (CO) 6 }(μ,η 2 -FcCCH)] and HSiEt 3 was stirred in dry 1,2-dichloroethane in the absence of light at 50 °C for 4 h. After a TLC purification, the formation of the R-isomer [FcC(SiEt 3 )dCH 2 ] (1) in a 63% yield was confirmed by 1 H and 13 C NMR spectroscopy and mass spectrometry (Scheme 1).…”

“…[R = Ph, C 6 F 5 ] by hydroalkoxylation and hydrothiolation of the thioether FcCtCSCtCH. 1 On the other hand, due to the increasing interest in the ferrocenyl carbosilane dendrimers as molecules with possibilities as functional materials with promising electrochemical, catalytic, photo-optical, and magnetic properties, in the last years we have been interested in finding new synthetic routes to prepare this type of compound. [2][3][4][5][6][7] Thus, we have recently described the preparation of new dendrimers containing ferrocenyl acetylide terminal groups coordinated to the cluster Os 3 (CO) 10 .…”

“…Addition of HX (X = SR, OR, SiR 3 , or BR 2 ) across carbon−carbon multiple bonds promotes the formation of new C−X bonds. This fact has allowed us to recently prepare the multifunctional ligands [( Z )-FcCCSC(H)C(H)(OMe)], [( Z )-FcCCSC(H)C(H)(OEt)], [( Z )-FcCCSC(H)C(H)SPh], [( Z )-FcCCSC(H)C(H)SC 6 F 5 ], and [( Z,Z )-Fc(SR)CC(H)SC(H)C(H)SR] [R = Ph, C 6 F 5 ] by hydroalkoxylation and hydrothiolation of the thioether FcCCSCCH …”