[EN] METHODS FOR PRODUCING ARYLSULFUR PENTAFLUORIDES<br/>[FR] PROCÉDÉS DE PRODUCTION DE PENTAFLUORURES DE SOUFRE ARYLÉS
申请人:IM & T RES INC
公开号:WO2010014665A1
公开(公告)日:2010-02-04
Novel methods for preparing arylsulfur pentafluorides are disclosed. Arylsulfur halotetrafluoride is reacted with a fluoride source under hydrous conditions to form an arylsulfur pentafluoride. The purification method is also disclosed.
Novel processes for preparing arylsulfur pentafluorides are disclosed. Processes include reacting at least one aryl sulfur compound with a halogen and a fluoro salt to form an arylsulfur halotetrafluoride. The arylsulfur halotetrafluoride is reacted with a fluoride source to form a target arylsulfur pentafluoride.
C–H Electrophilic (phenylsulfonyl)difluoromethylation of (hetero)arenes with a newly designed reagent
作者:Enzo Nobile、Thomas Castanheiro、Tatiana Besset
DOI:10.1039/d1cc04737j
日期:——
The synthesis of an original electrophilic difluoromethylating reagent was successfully achieved upon a straightforward protocol (3 steps). Like a Swiss army knife, this bench-stable reagent allowed the functionalization of various classes of compounds under mild and transition metal-free conditions. Hence, an efficient and operationally simple tool for the construction of C(sp2)-, C(sp3)- and S-CF2SO2Ph
Mo‐Based Oxidizers as Powerful Tools for the Synthesis of Thia‐ and Selenaheterocycles
作者:Peter Franzmann、Sebastian B. Beil、Dieter Schollmeyer、Siegfried R. Waldvogel
DOI:10.1002/chem.201805938
日期:2019.2.6
A highly efficient synthetic protocol for the synthesis of thia‐ and selenaheterocycles has been developed. By employing a MoCl5‐mediated intramolecular dehydrogenative coupling reaction, a broad variety of structural motifs was isolated in yields up to 94 %. The electrophilic key transformation is tolerated by several labile moieties like halides and tertiary alkyl groups. Due to the use of disulfide
Synthesis of Selenaheterocycles via Visible‐Light‐Mediated Radical Cyclization
作者:Kim Christopher C. Aganda、Anna Lee
DOI:10.1002/adsc.202100969
日期:2021.11.23
An approach for the synthesis of selenaheterocycles starting from aryl diazonium salts was developed. The one-pot process and subsequent visible-light-mediated silver-catalyzed cyclization enabled the synthesis of selenaheterocycles in the absence of a photocatalyst. The reactions were carried out under mild conditions without the use of toxic or sensitive reagents.