manganese-catalyzed N-alkylation reaction of amines with alcohols via hydrogen autotransfer strategy has been demonstrated. The developed practical catalytic system including an inexpensive, nontoxic, commercially available MnCl2 or MnBr(CO)5 as the metal salt and triphenylphosphine as a ligand provides access to diverse aromatic, heteroaromatic, and aliphatic secondary amines in moderate-to-high yields
Mild and facile preparations of 2-substituted or 2,3-disubstituted indole compounds were achieved by RhH(CO)(Ph3P)3 (4−10 mol %)-catalyzed reaction of N-propargylanilines in hexafluoroisopropyl alcohol (HFIP). The formation of indoles was proven to be derived from an o-allenylaniline intermediate, which was generated by the Rh(I)-catalyzed amino-Claisen rearrangement of N-propargylanilines. The catalytic
[EN] ARYLATION OF ALIPHATIC AMINES<br/>[FR] ARYLATION D'AMINES ALIPHATIQUES
申请人:AAA CHEMISTRY APS
公开号:WO2017137047A1
公开(公告)日:2017-08-17
The invention relates to a method for arylation of amines, such as aliphatic amines by reaction of aryl-halogens, e.g. chloro- or fluorobenzene derivatives without strongly electron withdrawing substituents in the presence of a strong base.