Asymmetric arylation of alkylnitriles forms quaternarystereocenters in good enantiocontrol for the first time. A lithium heterodimer consisting of an alkylnitrile anion and a disilylamide ion is the actual species responsible for the stereodetermining transmetalation in the catalytic cycle.
An efficient method for the synthesis of mono α-aryl derivatives of diethyl malonate and ethylcyanoacetate using ethyl-1-imidazole carbamate (EImC) has been described. Using this method many sterically hindered and highly substituted mono α-aryl derivatives of diethyl malonate and ethylcyanoacetate were synthesized in high yield.
arylation of ethyl cyanoacetate, malononitrile, and various ketones. The products from these reactions can be elaborated to substituted β-arylethylamines and used in microwave-assisted Pictet–Spengler reactions. The protocol developed is suitable for the synthesis of libraries of substituted isoquinolines.
[EN] PHENALKYLAMINE DERIVATIVES, PHARMACEUTICAL COMPOSITIONS CONTAINING THEM, AND THEIR USE IN THERAPY<br/>[FR] DÉRIVÉS DE PHÉNALKYLAMINE, COMPOSITIONS PHARMACEUTIQUES LES CONTENANT, ET LEUR UTILISATION EN THÉRAPIE
申请人:ABBOTT GMBH & CO KG
公开号:WO2012020130A1
公开(公告)日:2012-02-16
The present invention relates to phenalkylamine derivatives of the formula (I) or a physiologically tolerated salt thereof. The invention relates to pharmaceutical compositions comprising such phenalkylamine derivatives, and the use of such phenalkylamine derivatives for therapeutic purposes. The phenalkylamine derivatives are GlyT1 inhibitors.
An Efficient and Mild CuI/<scp>l</scp>-Proline-Catalyzed Arylation of Acetylacetone or Ethyl Cyanoacetate
作者:Yongwen Jiang、Nan Wu、Haihong Wu、Mingyuan He
DOI:10.1055/s-2005-918921
日期:——
The coupling reaction of aryl iodides with acetylacetone or ethyl cyanoacetate under catalysis of CuI/l-proline works at relatively mild conditions to provide 3-aryl-2, 4-pentanediones and α-aryl cyanoacetates in moderate to good yields.