Tertiary amine synthesis via reductive coupling of amides with Grignard reagents
作者:Lan-Gui Xie、Darren J. Dixon
DOI:10.1039/c7sc03613b
日期:——
reductive coupling reaction of Grignard reagents and tertiary amides affording functionalised tertiary amine products via an efficient and technically-simple one-pot, two-stage experimental protocol, is reported. The reaction – which can be carried out on gram-scale using as little as 1 mol% Vaska's complex [IrCl(CO)(PPh3)2] and TMDS as the terminal reductant for the initial reductive activation step –
[EN] DPP-IV INHIBITORS<br/>[FR] INHIBITEURS DE LA DPP-IV
申请人:GRAFFINITY PHARMACEUTICALS AG
公开号:WO2005095343A1
公开(公告)日:2005-10-13
The invention relates to compounds of formula (I), Z-C(R<1>R<2>)-C(R<3>NH2)-C(R<4>R<5>)-X-N(R<6>R<7>), wherein Z, R<1-7> and X have the meaning as cited in the description and the claims. Said compounds are useful as DPP-lV inhibitors. The invention also relates to the preparation of such compounds as well as the production and use thereof as medicament.
Determination of the chiral status of different novel psychoactive substance classes by capillary electrophoresis and β‐cyclodextrin derivatives
作者:Johannes S. Hägele、Eva‐Maria Hubner、Martin G. Schmid
DOI:10.1002/chir.23268
日期:2020.9
aforementioned compound classes. Enantioresolution was achieved by simply adding native β‐cyclodextrin, acetyl‐β‐cyclodextrin, 2‐hydroxypropyl‐β‐cyclodextrin, or carboxymethyl‐β‐cyclodextrin as chiral selector additives to the background electrolyte. Fifty‐one chiral NPS served as analytes mainly purchased from online vendors via the Internet. Using 10 mM of the aforementioned β‐cyclodextrins in a 10 mM
Ind2TiMe2-Catalyzed Addition of Methyl- and Ethylamine to Alkynes
作者:Klaudia Marcseková、Bernd Wegener、Sven Doye
DOI:10.1002/ejoc.200500458
日期:2005.11
simple hydrogenation-like experimental protocol for the addition of gaseous methyl- and ethylamine to alkynes in the presence of Ind2TiMe2 as the catalyst. For efficient hydroamination reactions it is sufficient to stir a mixture of the alkyne and the catalyst in toluene at temperatures between 80 °C (terminal alkynes) and 105 °C (internal alkynes) under a constant pressure of 1 atm of the corresponding