603984-42-5Relevant articles and documents
Rhodium-catalyzed aryl transfer from trisubstituted aryl methanols to α,β-unsaturated carbonyl compounds
Nishimura, Takahiro,Katoh, Taisuke,Hayashi, Tamio
, p. 4937 - 4939 (2008/02/08)
(Chemical Equation Presented) A process of elimination: The rhodium-catalyzed arylation of α,β-unsaturated carbonyl compounds with 9-aryl-10-benzyl-9,10-dihydroacridin-9-ols 1 as arylating reagents proceeds efficiently via β-aryl elimination of the rhodium alkoxide intermediates, to give the 1,4-addition products in high yields (see scheme; Bn = benzyl, cod = cycloocta-1,5-diene).
1,4-Addition of Arylsiloxanes to Enones Catalyzed by Dicationic Palladium(II) Complexes in Aqueous Media
Nishikata, Takashi,Yamamoto, Yasunori,Miyaura, Norio
, p. 752 - 753 (2007/10/03)
Catalytic 1,4-addition of arylsiloxanes to enones was carried out at 75°C in the presence of a dicationic palladium(II) catalyst in aqueous 1,4-dioxane. A nitrile-free complex generated in situ from Pd(dba)2 and Cu(BF4)2 in the presence of dppe or dppben was recognized to be the best catalyst to achieve high yields for the representative enones and enals.