6072-49-7Relevant articles and documents
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.
Heterocyclic Compound
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Paragraph 1772; 1773; 1774, (2018/06/15)
The present invention provide a compound having an orexin receptor antagonistic activity, which is expected to be useful as medicaments such as agents for the prophylaxis or treatment of sleep disorder, depression, anxiety disorder, panic disorder, schizophrenia, drug dependence, Alzheimer's disease and the like. The present invention relates to a compound represented by the formula (I): wherein each symbol is as defined in the specification, or a salt thereof.
Synthesis of Novel 4,4-Dialkyl- and 4,4-Diarylindeno[1,2-b]Thiophenes and their 2-Bromo Derivatives
Bucevicius, J.,Tumkevicius, S.,Adomenasp, P.
, p. 1413 - 1420 (2015/08/19)
A series of new 4,4-dialkyl- and 4,4-diaryl-4H-indeno[1,2-b]thiophenes and their 2-bromo derivatives were synthesized and characterized. An economical one-pot method for the preparation of the key starting material 2-(2-thienyl)benzoic acid and improved p