Asymmetric Pd-Catalyzed Alkene Carboamination Reactions for the Synthesis of 2-Aminoindane Derivatives
摘要:
A new type of Pd-catalyzed alkene carboamination reaction that provides direct access to enantioenriched 2-aminoindanes from 2-allylphenyltriflate derivatives and aliphatic amines is described. A catalyst generated in situ from Pd(OAc)(2) and (S)-tert-butylPHOX provides the functionalized carbocycles in good yield with up to >99:1 er. The transformations occur via a key anti-aminopalladation that involves intermolecular attack of an amine nudeophile on an arylpalladium alkene complex.
Halogen substituted metallocene compounds for olefin polymerization
申请人:Voskoboynikov Z. Alexander
公开号:US20070135593A1
公开(公告)日:2007-06-14
A metallocene compound comprises a transition metal and at least one substituted monocyclic or polycyclic arene ligand bonded to the transition metal, wherein said arene ligand comprises at least one halogen substituent directly bonded to an sp
2
carbon atom at a bondable ring position of an aromatic five-membered ring of said arene ligand.
Compounds of formula (I), and pharmaceutical acceptable salts thereof,
which inhibit the activity of kinases such as Wee-1 kinase are described. Also described are methods of making the compounds, compositions containing the compounds, and methods of treatment using the compounds.
COMPOUNDS AND METHODS FOR INHIBITING NHE-MEDIATED ANTIPORT IN THE TREATMENT OF DISORDERS ASSOCIATED WITH FLUID RETENTION OR SALT OVERLOAD AND GASTROINTESTINAL TRACT DISORDERS