1344026-87-4Relevant academic research and scientific papers
Samarium triflate-catalyzed dimerization of vinylarenes
Chang, Meng-Yang,Tsai, Yu-Lin
, p. 200 - 211 (2019)
We report the preparation of substituted indanes and their dimeric isomers via the samarium triflate-mediated [Sm(OTf)3, 10 mol%] self-dimerization of vinylarenes in MeNO2 at 25 oC for 10 h. The diverse products were obtained in moderate to high yields. The synthesis involves a (3+2) annulation via the formation of carbon-carbon bonds. Plausible mechanisms are proposed and discussed. The investigation of various rare metal triflates catalyst loadings, reaction conditions, and substrate scope led to an operationally easy one-pot Friedel-Crafts reaction protocol.
Remarkable effect of valence electrons in thiolato-bridged diruthenium complexes toward catalytic dimerization of α-methylstyrenes
Miyake, Yoshihiro,Moriyama, Taichi,Tanabe, Yoshiaki,Onodera, Gen,Nishibayashi, Yoshiaki
experimental part, p. 5972 - 5977 (2012/01/04)
The dicationic diruthenium complex 1c (RuIII-RuIII) catalytically promotes the dimerization of α-methylstyrenes into the corresponding acyclic dimers, while the use of the mixed-valence diruthenium complex (RuIII-RuIV) generated from 1c and cinnamyl chloride as an active catalyst affords the corresponding indanes via cyclization of the acyclic dimers. The selectivity of the catalytic dimerization of α-methylstyrenes depends on the nature of electrophilicity due to valence electrons in the diruthenium cores between RuIII-RuIII and RuIII-RuIV.
