A metal nanoparticle-based supramolecular approach for aqueous biphasic reactions
作者:Shilpa C. Mhadgut、Kumaranand Palaniappan、Muralidhara Thimmaiah、Stephen A. Hackney、Béla Török、Jian Liu
DOI:10.1039/b502181b
日期:——
β-cyclodextrin immobilized on Pd nanoparticles was successfully employed as an efficient phase-transfer catalyst in aqueous biphasic hydrogenation reactions.
[EN] SPIROCYCLIC HAT INHIBITORS AND METHODS FOR THEIR USE<br/>[FR] INHIBITEURS DE HAT SPIROCYCLIQUES ET LEURS PROCÉDÉS D'UTILISATION
申请人:ABBVIE INC
公开号:WO2016044770A1
公开(公告)日:2016-03-24
Compounds having a structure of Formula (IX) or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof, wherein R1, R2a, R2b, R3a, R3b, R4a, R4b, Q1----Q2, R6, R7, A, B, W, x, and y are as defined herein and are provided. Pharmaceutical compositions comprising such compounds and methods for treating various HAT-related conditions or diseases, including cancer, by administration of such compounds are also provided.
Substitution of alkylhalides for the synthesis of amines is a relevant target for synthetic chemists. Secondary amines can be obtained in a one pot-one step reaction from secondary and benzylic alcohols and aniline over a heterogeneous copper catalyst. The process does not require any additive, is intrinsically safe and produces no waste.
Metal–Ligand Cooperation Facilitates Bond Activation and Catalytic Hydrogenation with Zinc Pincer Complexes
作者:Michael Rauch、Sayan Kar、Amit Kumar、Liat Avram、Linda J. W. Shimon、David Milstein
DOI:10.1021/jacs.0c05500
日期:2020.8.26
A series of PNP zinc pincer complexes capable of bondactivation via aromatization/dearomatization metal–ligand cooperation (MLC) were prepared and characterized. Reversible heterolytic N–H and H–H bondactivation by MLC is shown, in which hemilability of the phosphorus linkers plays a key role. Utilizing this zinc pincer system, base-free catalytic hydrogenation of imines and ketones is demonstrated
Conversion of aldimines to secondary amines using iron-catalysed hydrosilylation
作者:Anu Saini、Cecilia R. Smith、Francis S. Wekesa、Amanda K. Helms、Michael Findlater
DOI:10.1039/c8ob01262h
日期:——
hydrosilylation of imines to amines using a well-defined iron complex is reported. This method employs relatively mild conditions, by reaction of imine, (EtO)3SiH in a 1 : 2 ratio in the presence of 1 mol% precatalyst ([BIAN]Fe(η6-toluene), 3, BIAN = bis(2,6-diisopropylaniline)acenaphthene) at 70 °C. A broad scope of imines was readily converted into the corresponding secondary amines without the need for