描述了由2-(邻-羟基芳基)苯并噻唑和可商购的二氟碘乙酸乙酯(ICF 2 CO 2 Et)方便地合成2-(2-(二氟甲氧基)芳基)苯并[d]噻唑的方法。变换为适合于从一釜,顺序三组分协议ö羟基苯甲醛,ø -aminothiophenol,和ICF 2 CO 2的Et促进由KOH。另外,一些制备的化合物对人卵巢癌细胞显示出有希望的活性。
[EN] SYNTHESIS OF DIFLUOROMETHYL ETHERS AND SULFIDES<br/>[FR] SYNTHÈSE DE DIFLUOROMÉTHYLÉTHERS ET DE DIFLUOROMÉTHYLSULFURES
申请人:UNIV CALIFORNIA
公开号:WO2014107380A1
公开(公告)日:2014-07-10
The synthesis of difluoromethyl ethers and sulfides with a simple, non-ozone- depleting reagent is described. The difluoromethylation of phenols with this reagent occurs at room temperature within minutes with exceptional functional group tolerance. The mild conditions makes possible tandem processes for the conversion of aryl boronic acids, aryl halides and arenes to difluoromethyl ethers. Mechanistic studies support a reaction pathway involving nucleophilic attack of the phenolate to difluorocarbene.
The synthesis of difluoromethyl ethers and sulfides with a simple, non-ozone-depleting reagent is described. The difluoromethylation of phenols with this reagent occurs at room temperature within minutes with exceptional functional group tolerance. The mild conditions makes possible tandem processes for the conversion of aryl boronic acids, aryl halides and arenes to difluoromethyl ethers. Mechanistic studies support a reaction pathway involving nucleophilic attack of the phenolate to difluorocarbene.
Synthesis of bioactive 2-(2-(difluoromethoxy)aryl)benzo[d]thiazole derivatives via base-promoted one-pot process
A convenient synthesis of 2-(2-(difluoromethoxy)aryl)benzo[d]thiazoles from 2- (o-hydroxyaryl)benzothiazoles and commercially available ethyl difluoroiodoacetate (ICF2CO2Et) is described. The transformation was amenable to a one-pot, sequential three-component protocol from o-hydroxybenzaldehyde, o-aminothiophenol, and ICF2CO2Et promoted by KOH. Additionally, some of the prepared compounds exhibited
描述了由2-(邻-羟基芳基)苯并噻唑和可商购的二氟碘乙酸乙酯(ICF 2 CO 2 Et)方便地合成2-(2-(二氟甲氧基)芳基)苯并[d]噻唑的方法。变换为适合于从一釜,顺序三组分协议ö羟基苯甲醛,ø -aminothiophenol,和ICF 2 CO 2的Et促进由KOH。另外,一些制备的化合物对人卵巢癌细胞显示出有希望的活性。