One catalyst fits all! One catalyst is active for a wide set of benzylating reactions (see scheme). A tandem process allows the use of aldehydes and ketones as benzylating agents.
ortho-C-alkylation of unprotected anilines with a variety of styrenes and alkenes using a univalent cationic indium(I) catalyst is reported. Mechanistic studies revealed that the reaction likely proceeds via a tandem hydroamination/Hofmann–Martius rearrangement. The high compatibility between the cationic indium(I) complex and primary anilines led us to develop an In(I)+-catalyzed hydroamination of alkenes
Zinc triflate-catalyzed intermolecular hydroamination of vinylarenes and anilines: scopes and limitations
作者:Gong-Qing Liu、Yue-Ming Li
DOI:10.1016/j.tetlet.2011.10.124
日期:2011.12
Intermolecular hydroamination of vinylarenes and anilines was studied using zinc triflate as catalyst. NMR experiments supported a Lewis acid activation of the CC double bond. Electronic/steric effect study indicated that Lewis acidity of the catalyst as well as the coordination property of the amine were the governing factors for successful hydroamination of the substrates. More nucleophilic amine
Catalytic Alkylation of Aromatic Amines with Styrene in the Presence of Cationic Rhodium Complexes and Acid
作者:Matthias Beller、Oliver R. Thiel、Harald Trauthwein
DOI:10.1055/s-1999-2579
日期:1999.2
The first transition metal-catalyzed Friedel-Crafts alkylation of aromatic amines with styrene is reported. ortho-Alkylation of anilines occurs using catalytic amounts of [Rh(cod)2]BF4/4 PPh3 and HBF4.