838826-69-0Relevant articles and documents
Borane-Induced Dimerization of Arylallenes
Tao, Xin,Daniliuc, Constantin G.,Dittrich, Dustin,Kehr, Gerald,Erker, Gerhard
supporting information, p. 13922 - 13926 (2018/10/05)
A series of arylallenes react with HB(C6F5)2 in a 2:1 molar ratio to give the tail-to-tail 1,6-diaryl-2-boryl-hexa-1,5-diene coupling products. The reaction of the phenylallene substrate with HB(C6F5)
Ruthenium-catalyzed stereospecific decarboxylative allylation of non-stabilized ketone enolates
Burger, Erin C.,Tunge, Jon A.
, p. 2835 - 2837 (2007/10/03)
The ruthenium-catalyzed stereospecific decarboxylative allylation of ketone enolates provides access to γ,δ-unsaturated ketones with good yields and enantioenrichments. The Royal Society of Chemistry 2005.
Palladium-catalyzed intramolecular hydroalkylation of alkenyl- β-keto esters, α-aryl ketones, and alkyl ketones in the presence of Me 3SiCl or HCI
Han, Xiaoqing,Wang, Xiang,Pei, Tao,Widenhoefer, Ross A.
, p. 6333 - 6342 (2007/10/03)
Reaction of 3-butenyl β-keto esters or 3-butenyl α-aryl ketones with a catalytic amount of [PdCl2(CH3CN)2] (2) and a stoichiometric amount of Me3SiCl or Me3SiCl/ CuCl2 in dioxane at 25-70°C formed 2-substituted cyclohexanones in good yield with high regioselectivity. This protocol tolerated a number of ester and aryl groups and tolerated substitution at the allylic, enolic, and cis and trans terminal olefinic positions. In situ NMR experiments indicated that the chlorosilane was not directly involved in palladium-catalyzed hydroalkylation, but rather served as a source of HCl, which presumably catalyzes enolization of the ketone. Identification of HCl as the active promoter of palladium-catalyzed hydroalkylation led to the development of an effective protocol for the hydroalkylation of alkyl 3-butenyl ketones that employed sub-stoichiometric amounts of 2, HCl, and CuCl2 in a sealed tube at 70°C.
