2690-17-7Relevant articles and documents
Cathodic behaviour of 1-cycloalken-1-yl phenyl sulfones. I. Competition among dimerization, cleavage, isomerization and oligomerization processes in aprotic media
Prigent, Sylvie,Cauliez, Pascal,Simonet, Jacques,Peters, Dennis G.
, p. 892 - 900 (2007/10/03)
1-Cycloalken-1-yl phenyl sulfones 1a and 1b have been studied electrochemically in aprotic media (N,N-dimethylformamide, dimethyl sulfoxide, or acetonitrile containing tetraalkylammonium salts) at a mercury electrode. Their behaviour has been compared with that of 2-norbornen-2-yl phenyl sulfone 1c. The expected cleavage reaction is accompanied by a concomitant isomerization process into allyl sulfones that is triggered by electrogenerated bases. A quantitative determination of the product distribution during controlled-potential electrolyses suggests the formation of dimers and oligomeric species, arising through a Michael addition of the sulfone anions to the activated double bond of these sulfones.
On the Oligomerization of Cyclic Alkenes in the Presence of Zirconium-containing Catalytic Systems
Bittrich, H.-H.,Bittrich, R.,Sass, L.,Zirz, P.,Reich, P.,Zimmermann, G.
, p. 177 - 187 (2007/10/02)
In connection with investigations on olefin metathesis we studied the reaction of cyclic olefins C5 - C8 and C12 in the presence of zirconium-containing catalytic systems in the homogeneous liquid phase.The influence of different zirconium compounds on the reaction run off and on the distribution of the reaction products was examined in the presence and the absence of Lewis acids.The reaction products could be separated and identified by a combination of distillation, chromatographical, chemical and spectrometrical methods.The results show that under the conditions mentioned a metathetic polymerization and a normal olefin oligomerization take place simultaneously.
