Silver-Catalyzed Trifluoromethoxylation of Alkyl Trifluoroborates
作者:Xiaohuan Jiang、Pingping Tang
DOI:10.1021/acs.orglett.0c01741
日期:2020.7.2
A silver-catalyzed trifluoromethoxylation of alkyl trifluoroborates with trifluoromethyl arylsulfonate as the trifluoromethoxylation reagent has been reported for the first time. This reaction is performed under mild reaction conditions and has wide functional group compatibility. In addition, the mechanism of this site-specific trifluoromethoxylation is proposed as a radical pathway.
[EN] NOVEL ANTIPARASITIC COMPOUNDS AND METHODS<br/>[FR] NOUVEAUX COMPOSÉS ANTIPARASITAIRES ET PROCÉDÉS
申请人:UNIV TEXAS
公开号:WO2021077102A1
公开(公告)日:2021-04-22
Novel compounds for treating or inhibiting leishmaniasis and other parasitic protozoan diseases are disclosed herein. The compounds bind to Leishmania tubulin, induce parasite microtubule polymerization, stall Leishmania cell division, and have broad antiparasitic activity.
Fluorinated organiccompounds are becoming increasingly important in pharmaceuticals, agrochemicals and materials science. The introduction of trifluoromethoxy groups into new drugs and agrochemicals has attracted much attention due to their strongly electron-withdrawing nature and high lipophilicity. However, synthesis of trifluoromethoxylated organic molecules is difficult owing to the decomposition
[EN] NOVEL ARYLALKYL PYRAZOLE COMPOUNDS AS INDOLEAMINE 2,3-DIOXYGENASE INHIBITORS<br/>[FR] NOUVEAUX COMPOSÉS ARYLALKYLE PYRAZOLE UTILES EN TANT QU'INHIBITEURS DE L'INDOLÉAMINE 2,3-DIOXYGÉNASE
申请人:MERCK SHARP & DOHME
公开号:WO2020081381A1
公开(公告)日:2020-04-23
Disclosed herein are compounds of formula (I) which are inhibitors of an IDO enzyme: Also disclosed herein are uses of the compounds in the potential treatment or prevention of an IDO-associated disease or disorder. Also disclosed herein are compositions comprising these compounds. Further disclosed herein are uses of the compositions in the potential treatment or prevention of an IDO-associated disease or disorder.
Facile Access to AgOCF<sub>3</sub>and Its New Applications as a Reservoir for OCF<sub>2</sub>for the Direct Synthesis of N−CF<sub>3</sub>, Aryl or Alkyl Carbamoyl Fluorides
showcase its performance in trifluoromethoxylations or as reservoir for O=CF2. This enabled the direct, practical and safe synthesis of valuable N‐alkyl/aryl and N−CF3 carbamoyl fluorides from secondary amines and isothiocyanides, respectively. Our mechanistic data indicate that AgOCF3 does not liberate O=CF2 until it is activated by a nucleophilic co‐reagent, reinforcing the stability of the salt under