Chemoselective Reductive Aminations in Aqueous Nanoreactors Using Parts per Million Level Pd/C Catalysis
作者:Ruchita R. Thakore、Balaram S. Takale、Gianluca Casotti、Eugene S. Gao、Henry S. Jin、Bruce H. Lipshutz
DOI:10.1021/acs.orglett.0c02156
日期:2020.8.21
water between aldehydes or ketones and amines occurs smoothly within the hydrophobic cores of nanomicelles, resulting in imine formation that is subject to subsequent reduction leading, overall, to reductive amination. This micellar technology enables the synthesis of several types of pharmaceuticals, a new procedure that relies on only 2000 ppm (0.20 mol %) palladium from commercially available Pd/C. A
Highly efficient Amination in Neat Water of Benzyl Chlorides with Dialkylformamides Catalysed by <i>N</i>-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex
作者:Wen-Xin Chen、Cai-Yun Zhang、Jian-Mei Lu
DOI:10.3184/174751913x13787959859344
日期:2013.10
Dialkylformamides are excellent N-sources in the amination of benzylchlorides when catalysed by a NHC-Pd(II)-Im complex. In the presence of NaOH and the catalyst, variously substituted benzylchlorides and five different dialkylformamides reacted smoothly to afford the corresponding N,N-dialkyl-benzylamines in good to almost quantitative yields in eco-friendly solvent water at 50 °C within 3 h.
A process for fluorination of aromatic compounds employing iodonium ylides and applicable to radiofluorination using 18F is described. Processes, intermediates, reagents and radiolabelled compounds are described.
Use of acetate as a leaving group in palladium-catalyzed nucleophilic substitution of benzylic esters
作者:Masashi Yokogi、Ryoichi Kuwano
DOI:10.1016/j.tetlet.2007.06.157
日期:2007.8
The palladium complex prepared in situ from [Pd(η3-C3H5)(cod)]BF4 and bidentate phosphine DPPF was a good catalyst for the nucleophilicsubstitution of benzyl acetate. Significant acceleration of the palladium-catalyzedsubstitution was observed when an alcohol was employed as a reaction solvent. The palladium catalyst was effective for the benzylation of various stabilized carbanions, amines, and
钯在从[钯(η原位络合物制备的3 -C 3 H ^ 5)(COD)] BF 4和双齿膦DPPF是一个很好的用于乙酸苄酯的亲核取代的催化剂。当将醇用作反应溶剂时,观察到钯催化的取代的显着加速。钯催化剂可有效地用于各种稳定化碳负离子,胺和苯亚磺酸盐的苄基乙酸酯的苄基化反应。
DIHYDROPTERIDINONES FOR THE TREATMENT OF CANCER DISEASES
申请人:Boehringer Ingelheim International GmbH
公开号:EP2409706A1
公开(公告)日:2012-01-25
The present invention relates to the use of a compound of general Formula (1),
optionally in form of its tautomers, racemates, enantiomers, diastereomers and the mixtures thereof and optionally in form of the pharmacologically acceptable acid addition salts, solvates, hydrates, polymorphs, physiologically functional derivatives or prodrugs thereof, for the preparation of a pharmaceutical composition for the treatment of diseases characterized by abnormal cell proliferation in a human or non-human mammalian body by inhibition of polo like kinases as mitotic regulators.