1228186-58-0Relevant academic research and scientific papers
Synthesis and complexation of dichalcogenoethers with cyclopropyl backbones, (CH2EMe)2 (E = Se or Te)
Levason, William,Ollivere, Luke P.,Reid, Gillian,Webster, Michael
, p. 1346 - 1352 (2010)
The reaction of LiTeMe with C(CH2Br)4 in thf gives {A figure is presented}(CH2TeMe)2 irrespective of the ratio of reactants, in contrast to the reaction with LiSeMe, which gives either C(CH2SeMe)4 or {A figure is presented}(CH2SeMe)2 depending upon the reaction conditions. The synthesis and properties of [{A figure is presented}(CH2TeMe2)2]I2, {A figure is presented}(CH2TeMeI2)2, [Mn(CO)3Cl{{A figure is presented}(CH2EMe)2}] (E = Se or Te) and [MCl(η6-p-cymene){{A figure is presented}(CH2EMe)2}]PF6 (M = Ru or Os) are described. X-ray crystal structures are reported for [{A figure is presented}(CH2TeMe2)2]I2, [Mn(CO)3Cl{{A figure is presented}(CH2TeMe)2}], [MCl(η6-p-cymene){{A figure is presented}(CH2TeMe)2}]PF6 (M = Ru, E = Se or Te and M = Os, E = Se). The effect of the cyclopropyl ring in the ligand backbone is to open up the C-C-C angle within the chelate ring, compared with trimethylene linked analogues. Selenium-carbon bond fission occurs on attempted quaternisation of o-C6H4(CH2SeMe)2 or {A figure is presented}(CH2SeMe)2 with MeI yielding [Me3Se]I.
