Piperidine-2,6-diones heterocyclically substituted in the 3-position
申请人:Buschmann Heinrich Helmut
公开号:US20050020581A1
公开(公告)日:2005-01-27
Piperidine-2,6-diones heterocyclically substituted in the 3-position corresponding to formula I
Also the production and use of such compounds in pharmaceutical formulations and related methods of treatment.
pentamethylcyclopentadienyl) for the lactamization of aminoalcohols has been developed. As an example, the reaction of 3-(2-aminophenyl)-1-propanol in the presence of [CpRhCl(2)](2) (5.0% Rh) and K(2)CO(3) (10%) in acetone gives 3,4-dihydro-2(1H)-quinolinone in an isolated yield of 80%. A variety of five-, six-, and seven-membered benzo-fused lactams are synthesized by this catalytic system. [reaction: