Mechanochemical Transformation of CF
<sub>3</sub>
Group: Synthesis of Amides and Schiff Bases
作者:Satenik Mkrtchyan、Michał Jakubczyk、Suneel Lanka、Muhammad Yar、Khurshid Ayub、Mohanad Shkoor、Michael Pittelkow、Viktor O. Iaroshenko
DOI:10.1002/adsc.202100538
日期:2021.12.21
transformations of CF3 group with nitro compounds into amides or Schiff bases employing Ytterbia as a catalyst. This process proceeds via C−F bond activation, accompanied with utilisation of Si-based reductants/oxygen scavengers – reductants of the nitro group. The scope and limitations of the disclosed methodologies are thoroughly studied. To the best of our knowledge, this work is the first example of
Regiospecific monofluorinations of α-thio α-Eirylesters and α-thioacids were obtained by anodic and/or chemical oxidation in fluorinating media. This procedure provided a convenientsynthesis of α-fluoroesters via the C-S bond cleavage induced by anodic process while chemical or electrochemical oxidation of α-thioacids underwent a fluoro decarboxylation, affording α-fluorothioethers.
A new method for the formation of 1,1‐difluoroethyl copper species (“CuCF2CH3”) with 1,1‐difluoroethylsilane (TMSCF2CH3) has been developed. The “CuCF2CH3” species can be applied to the efficient 1,1‐difluoroethylation of diaryliodonium salts under mild conditions, affording (1,1‐difluoroethyl)arenes in good to excellent yields. This convenient procedure tolerates a wide range of functional groups
[EN] BICYCLIC COMPOUND THAT ACTS AS CRBN PROTEIN REGULATOR<br/>[FR] COMPOSÉ BICYCLIQUE QUI AGIT COMME RÉGULATEUR DE LA PROTÉINE CRBN<br/>[ZH] 作为CRBN蛋白调节剂的双并环类化合物