343-01-1Relevant articles and documents
Nanostructured Manganese Oxides within a Ring-Shaped Polyoxometalate Exhibiting Unusual Oxidation Catalysis
Sato, Kai,Yonesato, Kentaro,Yatabe, Takafumi,Yamaguchi, Kazuya,Suzuki, Kosuke
supporting information, (2021/12/30)
Nanosized manganese oxides have recently received considerable attention for their synthesis, structures, and potential applications. Although various synthetic methods have been developed, precise synthesis of novel nanostructured manganese oxides are st
Palladium-catalyzed intramolecular aromatic C-H acylation of 2-arylbenzoyl fluorides
Hayakawa, Kazuki,Ikai, Kana,Ogiwara, Yohei,Sakai, Norio,Sakurai, Yuka
, p. 1882 - 1893 (2021/08/13)
The catalytic intramolecular cyclization of acyl fluorides using a Pd(OAc)2/PCy3 system is described. A wide range of 2-arylbenzoyl fluoride derivatives can be used as fluorenone precursors and the reaction proceeds via an intramolecular coupling between aromatic C-H bonds with acyl C-F bonds. The reaction can be applied to the synthesis of indenofluorenedione derivatives and to the construction of other molecules with fivemembered rings.
Direct deoxygenative intramolecular acylation of biarylcarboxylic acids
Li, Yantao,Xu, Wentao,Zhu, Chengjian,Xie, Jin
supporting information, p. 387 - 390 (2020/09/11)
A photocatalyzed intramolecular cyclization is developed for the synthesis of fluorenones. In this photoredox reaction, triphenylphosphine is used as an inexpensive and effective deoxygenative reagent for biarylcarboxylic acids to give acyl radicals, which quickly undergo intramolecular radical cyclization. Reactions in the presence of air and continuous flow photoredox technology demonstrate the generality and practicality of this process.