report an enantioselective nickel-catalyzed intermolecular [2 + 2 + 2] cycloaddition of alkyne-tethered malononitriles with alkynes for the synthesis of densely substituted pyridines. The α-all-carbon quaternary center adjacent to pyridine is introduced by desymmetrizing the two cyano groups of disubstituted malononitriles. Notably, terminal alkynes are also tolerated with good regioselectivity to afford
Novel Pyrimidine- And Triazine-Hepcidine Antagonists
申请人:Dürrenberger Franz
公开号:US20120202806A1
公开(公告)日:2012-08-09
The present invention relates to new hepcidin antagonists, pharmaceutical compositions containing them and the use thereof as a drug, in particular for the treatment of iron metabolism disorders such as, in particular, iron deficiency diseases and anaemia, in particular anaemia associated with chronic inflammatory disease (ACD: anaemia of chronic disease and AI: anaemia of inflammation).
Rh-Catalyzed One-Pot Reductive Alkylation of Malononitrile Under Transfer Hydrogenation Conditions
作者:Jiashou Wu、Huajiang Jiang
DOI:10.1080/00397911.2010.481741
日期:2011.3.28
Abstract Efficient synthesis of monosubstituted malononitriles was achieved by one-pot reductive alkylation of malononitrile with carbonyl compounds via [Cp*RhCl2]2-catalyzed transferhydrogenation reaction.
Chiral Dinuclear Benzyliminobinaphthoxy‐Palladium Catalyst for Asymmetric Mannich Reaction of Aldimines and Isatin‐Derived Ketimines with Alkylmalononitriles
A newly developed dinuclear bis(benzylimino)binaphthol (BIB )−Pd complex showed good catalytic activity for the Mannichreaction of aldimines and isatin‐derived ketimines with alkylmalononitriles to give the products in a highlyenantioselective manner.
Enantioselective Decarboxylative Propargylation/Hydroamination Enabled by Organo/Metal Cooperative Catalysis
作者:Yu-Chen Zhang、Zi-Jing Zhang、Lian-Feng Fan、Jin Song
DOI:10.1021/acs.orglett.8b01101
日期:2018.5.4
The first catalytic enantioselective decarboxylative propargylation/hydroamination reaction of ethynyl benzoxazinanones with malononitriles enabled by organo/copper cooperativecatalysis was established. Various 3-indolin-malononitrile derivatives, displaying a high tolerance for functional groups, could be obtained in good yields with high levels of enantioselectivity (up to 85% yield, 96:4 er). More