26439-20-3Relevant academic research and scientific papers
Switchable ethylene tri-/tetramerization with high activity: Subtle effect presented by backbone-substituent of carbon-bridged diphosphine ligands
Zhang, Jun,Wang, Xiao,Zhang, Xuejun,Wu, Weijie,Zhang, Gengtao,Xu, Sheng,Shi, Min
, p. 2311 - 2317 (2013/10/22)
The effect of backbone-substituent of carbon-bridged diphosphine ligands of the types {Ph2PCH(R)CH2PPh2} and {Ph 2PC(R)iCHPPh2} on the catalyst performance in ethylene oligomerization has been explore
Iron(III)-catalyzed halogenations by substitution of sulfonate esters
Ortega, Nuria,Feher-Voelger, Andres,Brovetto, Margarita,Padron, Juan I.,Martin, Victor S.,Martin, Tomas
supporting information; experimental part, p. 963 - 972 (2011/06/20)
A novel halogenation reaction from sulfonates catalyzed by iron(III) is described. The reaction can be performed as a stoichiometric or a catalytic version. This reaction provides a convenient strategy for the efficient access to structurally diverse secondary chlorides, bromides and iodides. The stereochemical course of the reaction is governed by the substrate and the experimental conditions. Secondary alcohols modified as quisylates or pysylates are substantially more reactive. Aliphatic quisylates proceed with overall inversion of configuration under catalytic conditions. Chemoselectivity in bismesylates was observed in favour of the secondary mesylate. Additionally, based on the experimental results, a possible catalytic cycle for the halogenation has been proposed.
