A new rosin‐based amphiphile enables the oxidation of tertiary aromatic alcohols in water under mild conditions. The oxidation process is mediated by β‐scission of alkoxy radicals. Our catalyst system including the surfactant, catalysts, and water can be easily recycled within the same reaction vial.
Provided are novel compounds represented by the following general formula [1] or pharmaceutically acceptable salts thereof, that inhibit LpxC, as well as pharmaceutical drugs comprising those compounds or pharmaceutically acceptable salts thereof, that exhibit antimicrobial activity against gram-negative bacteria including multi-drug resistant strains and that are useful in the treatment of bacterial infections.
Transition‐Metal‐Free Radical Hydrotrifluoromethylation of Alkynes
作者:Kiran Matcha、Andrey P. Antonchick
DOI:10.1002/ejoc.201800291
日期:2019.1.23
A combination of readily available and bench‐stable CF3SO2Na and tBuOOH was efficiently used for hydrotrifluoromethylation of alkynes. An excellent trans‐selectivity was demonstrated in the synthesis of alkenes. The developed mild reaction conditions allow the supression of the competing Meyer–Schuster‐type rearrangement.
容易获得且稳定的CF 3 SO 2 Na和t BuOOH的组合有效地用于炔烃的加氢三氟甲基化。在烯烃的合成中表现出优异的反选择性。发达的温和反应条件可以抑制竞争性的Meyer–Schuster型重排。
Pyrrolopyridinylpyrimidin-2-ylamine derivatives
申请人:Wucherer-Plietker Margarita
公开号:US20110218198A1
公开(公告)日:2011-09-08
Compounds of the formula I in which X, R
1
, R
2
, R
3
, R
4
and R
6
have the meanings indicated in Claim
1
, are inhibitors of cell proliferation/cell vitality and can be employed for the treatment of tumours.
Pd(II)-Catalyzed Highly Regio- and Stereoselective Assembly of C–C Double Bonds: An Efficient Method for the Synthesis of 2,4-Dihalo-1,3,5-trienes from Alkynols
A highly efficient method for the synthesis of 2,4-dihalo-1,3,5-trienes fromalkynols was developed. This chemistry allows access to multiple conjugated double bonds in a single step with high stereoselectivity.