98128-00-8Relevant academic research and scientific papers
Copper-catalyzed hydroformylation and hydroxymethylation of styrenes
Franke, Robert,Geng, Hui-Qing,Meyer, Tim,Wu, Xiao-Feng
, p. 14937 - 14943 (2021/12/02)
Hydroformylation catalyzed by transition metals is one of the most important homogeneously catalyzed reactions in industrial organic chemistry. Millions of tons of aldehydes and related chemicals are produced by this transformation annually. However, most of the applied procedures use rhodium catalysts. In the procedure described here, a copper-catalyzed hydroformylation of alkenes has been realized. Remarkably, by using a different copper precursor, the aldehydes obtained can be further hydrogenated to give the corresponding alcohols under the same conditions, formally named as hydroxymethylation of alkenes. Under pressure of syngas, various aldehydes and alcohols can be produced from alkenes with copper as the only catalyst, in excellent regioselectivity. Additionally, an all-carbon quaternary center containing ethers and formates can be synthesized as well with the addition of unactivated alkyl halides. A possible reaction pathway is proposed based on our results. This journal is
Biarylphosphonite gold(I) complexes as superior catalysts for oxidative cyclization of propynyl arenes into indan-2-ones
Henrion, Guilhem,Chavas, Thomas E. J.,Le Goff, Xavier,Gagosz, Fabien
supporting information, p. 6277 - 6282 (2013/07/11)
Striking gold: A series of variously functionalized propynyl arenes was smoothly converted into indan-2-ones by a new gold(I)-catalyzed oxidative cyclization process. [LAu]NTf2 (Tf=trifluoromethanesulfonyl) is a superior catalyst both in terms of yield and kinetics for the present transformation. Copyright
A novel consecutive three-component Heck-isomerization-Wittig sequence by way of in situ generated aldehydes
Panther, Jesco,Roehrich, Adalbert,Mueller, Thomas J. J.
, p. 297 - 311 (2013/09/24)
A novel consecutive three-component four step synthesis of 5-(hetero)arylpent-2-enoates has been disclosed. Various (hetero)aryl iodides can be coupled with allyl alcohol under Heck conditions to give 3-(hetero)arylpropionaldehyde intermediates, which were transformed without isolation with in situ generated stabilized phosphorus ylides to furnish 5-(hetero)arylpent-2-enoates in moderate to excellent yield. This one-pot procedure circumvents the isolation of sensitive aldehydes and phosphorus ylides as intermediates and finally gives the product isomers with good to excellent E/Z and β/α selectivity. ARKAT-USA, Inc.
Inhibitors of Dihydrofolate Reductase With Antibacterial Antiprotozoal, Antifungal and Anticancer Properties
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Page/Page column 27-28, (2009/05/29)
The compositions and methods described herein discloses the design, synthesis and testing of compounds that act as inhibitors of DHFR. The basic scaffold of these inhibitors includes a 2,4-diaminopyrimidine ring with a propargyl linker to another substitu
Highly efficient ligands for dihydrofolate reductase from Cryptosporidium hominis and Toxoplasma gondii inspired by structural analysis
Pelphrey, Phillip M.,Popov, Veljko M.,Joska, Tammy M.,Beierlein, Jennifer M.,Bolstad, Erin S. D.,Fillingham, Yale A.,Wright, Dennis L.,Anderson, Amy C.
, p. 940 - 950 (2007/10/03)
The search for effective therapeutics for cryptosporidiosis and toxoplasmosis has led to the discovery of novel inhibitors of dihydrofolate reductase (DHFR) that possess high ligand efficiency: compounds with high potency and low molecular weight. Detaile
