Synthesis and reactivity of (benz)imidazol-2-ylidenes with exocyclic N-acyl or N-sulfonyl groups

N-Ferrocenylsulfonyl-2-methylaziridine: the first ferrocene monomer for the anionic (co)polymerization of aziridines

“…a ferrocenyl substituent, can be coupled via a sulfonamide to the aziridine, allowing us to conduct an anionic polymerization. The synthesis starts with the preparation of ferrocenyl sulfonic acid chloride, 22,23 which is then reacted with rac-2-methyl aziridine (Scheme 1), similar to a previously published procedure for tosyl-or mesyl-substituted aziridines. 9 After purification by column chromatography ( petroleum ether : ethyl acetate = 4 : 3, R f = 0.7), N-ferrocenylsulfonyl-2-methylaziridine (1, fcMAz) is obtained in 94% yield (last step) as orange crystals (a photograph of 1 and poly(1) is shown in the ESI †).…”

“…1 Ferrocenyl sulfonic acid chloride. 23 10.2 g (34 mmol) of ammonium ferrocene sulfonate monohydrate were suspended in 50 mL dry dichloromethane and cooled in an ice-bath. A few drops of dimethylformamide and 5.8 mL oxalyl chloride were added dropwise.…”

Nickel N-heterocyclic carbene complexes and their utility in homogeneous catalysis

“…(200),[91] (201),[92] (202),[93] (203),[91] (204−206),[92] (207) [94] and(208−209) [95] were synthesized by this method from the reaction of nickelocene derivatives and the azolium salts (Scheme 14 andFigure 16).…”

Synthesis of Ferrocene Based Organometallic Compounds & Antimicrobial Activity

“…The fields of organometallic compounds have been fast developing on account of the wide variety of possible structures for the ligands depending upon the Aldehydes and amines. Organometallic compounds are considered as a very important class of ferrocene &organic compounds, which have wide applications in many biological aspects [1][2]. Transition metal complexes of organometallic compounds are one of the most adaptable and thoroughly studied systems.…”