40486-73-5Relevant academic research and scientific papers
Cleavage of Co-C bond in allyl cobaloximes with arenesulphenyl chloride
Gupta,Dixit,Singh,Kanth
, p. 830 - 834 (2007/10/03)
Arenesulphenyl chlorides (ArSCl; Ar = Ph, C6Cl5, 2,4(NO2)2 C6H3) are reacted with allylcobaloximes, RCo(dmgH)2Py (R= allyl), under thermal and photochemical conditions to obtain the corresponding sulphides as the major organic products. α-Pinenyl cobaloxime forms the ring opened product as well. The homolytic as well as heterolytic cleavage of the Co-C bond is considered.
Formation of Allyl and Cyclopropylcarbinyl Sulphides in the Regiospecific Reactions of Arenesulphenyl Chlorides with Allyl- and But-3-enyl-cobaloximes
Ashcroft, Martyn R.,Gupta, B. Dass,Johnson, Michael D.
, p. 2021 - 2025 (2007/10/02)
Allyl- and substituted-allyl-bis(dimethylglyoximato)pyridinecobalt(III) complexes react regiospecifically with 2,4-dinitrobenzenesulphenyl chloride to give moderate (30-45percent) yields of the corresponding rearranged allyl 2,4-dinitrophenyl sulphides.The corresponding rearranged allyl derivative of the dimethylglyoxime is a major by-product.But-3-enylbis(dimethylglyoximato)pyridinecobalt(III) complexes also react regiospecifically to give cyclopropylmethyl 2,4-dinitrophenyl sulphides.The reactions are interpreted in terms of an electrophilic attack of the sulphur on the γ- and δ-carbon of the allyl- or butenyl-ligand, respectively, with concurrent or subsequent loss of cobaloxime(III), and with concurrent or subsequent cyclisation of the organic ligand in the case of the butenyl complexes.Benzenesulphenyl bromide and chloride react much more slowly and their reaction with allylbis(dimethylglyoximato)pyridinecobalt(III) has been briefly explored.
