[EN] SUBSTITUTED PHENOXYMETHYL DIHYDRO OXAZOLOPYRIMIDINONES, PREPARATION AND USE THEREOF [FR] PHÉNOXYMÉTHYL-DIHYDRO-OXAZOLOPYRIMIDINONES SUBSTITUÉES, LEUR PRÉPARATION ET LEUR UTILISATION
Cu(OAc)<sub>2</sub> Mediated Synthesis of 3-Sulfonyl Chromen-4-ones
作者:Meng-Yang Chang、Yu-Hsin Chen、Heui-Sin Wang
DOI:10.1021/acs.joc.8b00177
日期:2018.2.16
Copper acetate mediated (4 + 2) annulation of sulfonylacetylenes with salicylic acids provides sulfonyl chromen-4-ones in the presence of benzotriazol-1-yloxy tri(dimethylamino)phosphonium hexafluorophosphate (BOP, Castro’s reagent) and 4-dimethylaminopyridine (DMAP) in MeNO2 at reflux for 3 h. The uses of various metal complexes and activating reagents are investigated for facile and efficient transformation
Bifunctional Biphenyl-2-ylphosphine Ligand Enables Tandem Gold-Catalyzed Propargylation of Aldehyde and Unexpected Cycloisomerization
作者:Ting Li、Liming Zhang
DOI:10.1021/jacs.8b12478
日期:2018.12.19
been invoked as catalytic intermediates and their reactivities not studied. This work reports for the first time they are generated in situ and undergo nucleophilic addition to activated aldehydes in a bifunctional phosphine ligand-enabled gold catalysis. This development reveals a broad range of opportunities to achieve propargylic C-H functionalization for the first time under catalytic and mild conditions
The present invention relates to compounds which are of use in the field of agriculture as herbicides. The invention also relates to compositions comprising said compounds and methods of using said compounds.
[EN] INDOLE DERIVATIVES AS CRTH2 RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS D'INDOLE EN TANT QU'ANTAGONISTES DU RÉCEPTEUR CRTH2
申请人:MERCK SHARP & DOHME
公开号:WO2010099039A1
公开(公告)日:2010-09-02
Compound of formula (I) are antagonists of the PGD2 receptor, CRTH2, and as such are useful in the treatment and/or prevention of CRTH2-mediated diseases such as asthma.