Visible‐Light Controlled Divergent Catalysis Using a Bench‐Stable Cobalt(I) Hydride Complex
作者:Enrico Bergamaschi、Frédéric Beltran、Christopher J. Teskey
DOI:10.1002/chem.202000410
日期:2020.4.21
the ability to switch the actual function of the catalyst and resulting products. Here we report such an example of multi-dimensional catalysis. Featuring an easily prepared, bench-stable cobalt(I) hydride complex in conjunction with pinacolborane, we can switch the reaction outcome between two widely employed transformations, olefin migration and hydroboration, with visible light as the trigger.
Carbon−Carbon Coupling of C(sp<sup>3</sup>)−F Bonds Using Alumenium Catalysis
作者:Weixing Gu、Mason R. Haneline、Christos Douvris、Oleg V. Ozerov
DOI:10.1021/ja903927c
日期:2009.8.12
alkylation of aliphatic C-F bonds (alkylative defluorination or AlkDF) by alkylaluminum compounds. Only C(sp(3))-F bonds undergo AlkDF; C(sp(2))-F bonds are unaffected. Examples of compounds undergoing AlkDF include monofluoroalkanes, gem-difluorocyclopentane, and compounds containing a CF(3) group attached to either an aryl or an alkyl substituent. Conversion of C-F bonds to C-Me bonds is accomplished with
N,N'-BIS(FLUOROPHENYLALKYL)-SUBSTITUTED PERYLENE-3,4:9,10-TETRACARBOXIMIDES, AND THE PREPARATION AND USE THEREOF
申请人:Konemann Martin
公开号:US20090236591A1
公开(公告)日:2009-09-24
The present invention relates to N,N′-bis(fluorophenylalkyl)-substituted perylene-3,4:9,10-tetracarboximides, their preparation and their use as charge transport materials, exciton transport materials or emitter materials.
The present invention provides novel conformationally-defined macrocyclic compounds that have been demonstrated to be selective modulators of the ghrelin receptor (growth hormone secretagogue receptor, GHS-R1a and subtypes, isoforms and variants thereof). Methods of synthesizing the novel compounds are also described herein. These compounds are useful as agonists of the ghrelin receptor and as medicaments for treatment and prevention of a range of medical conditions including, but not limited to, metabolic and/or endocrine disorders, gastrointestinal disorders, cardiovascular disorders, obesity and obesity-associated disorders, central nervous system disorders, genetic disorders, hyperproliferative disorders and inflammatory disorders.
HUMAN GLUCAGON-LIKE PEPTIDE-1 MIMICS AND THEIR USE IN THE TREATMENT OF DIABETES AND RELATED CONDITIONS
申请人:Natarajan Iyer Sesha
公开号:US20070287670A1
公开(公告)日:2007-12-13
The present invention provides novel human glucagon-like peptide-1 (GLP-1) peptide mimics that mimic the biological activity of the native GLP-1 peptide and thus are useful for the treatment or prevention of diseases or disorders associated with GLP activity. Further, the present invention provides novel, chemically modified peptides that not only stimulate insulin secretion in type II diabetics, but also produce other beneficial insulinotropic responses. These synthetic peptide GLP-1 mimics exhibit increased stability to proteolytic cleavage making them ideal therapeutic candidates for oral or parenteral administration.