157017-41-9Relevant articles and documents
Synthesis of fluoren-9-ones by the palladium-catalyzed cyclocarbonylation of o-halobiaryls
Campo, Marino A.,Larock, Richard C.
, p. 5616 - 5620 (2002)
The synthesis of various substituted fluoren-9-ones has been accomplished by the palladium-catalyzed cyclocarbonylation of o-halobiaryls. The cyclocarbonylation of 4′-substituted 2-iodobiphenyls produces very high yields of 2-substituted fluoren-9-ones bearing either electron-donating or electron-withdrawing substituents. 3′-Substituted 2-iodobiphenyls afford 3-substituted fluoren-9-ones in excellent yields with good regioselectivity. This chemistry has been successfully extended to polycyclic fluorenones and fluorenones containing fused isoquinoline, indole, pyrrole, thiophene, benzothiophene, and benzofuran rings.
Scalable electrochemical synthesis of diaryliodonium salts
Elsherbini, Mohamed,Moran, Wesley J.
supporting information, p. 4706 - 4711 (2021/06/11)
Cyclic and acyclic diaryliodonium are synthesised by anodic oxidation of iodobiaryls and iodoarene/arene mixtures, respectively, in a simple undivided electrolysis cell in MeCN-HFIP-TfOH without any added electrolyte salts. This atom efficient process does not require chemical oxidants and generates no chemical waste. More than 30 cyclic and acyclic diaryliodonium salts with different substitution patterns were prepared in very good to excellent yields. The reaction was scaled-up to 10 mmol scale giving more than four grams of dibenzo[b,d]iodol-5-ium trifluoromethanesulfonate (>95%) in less than three hours. The solvent mixture of the large-scale experiment was recovered (>97%) and recycled several times without significant reduction in yield.
Synthesis of 1,3-Azaphospholes with Pyrrolo[1,2- a]quinoline Skeleton and Their Optical Applications
Wu, Di,Chen, Lingfeng,Ma, Shuangliang,Luo, Huiying,Cao, Jing,Chen, Runfeng,Duan, Zheng,Mathey, Francois
, p. 4103 - 4106 (2018/07/15)
A facile synthesis of 1,3-azaphospholes with a pyrrolo[1,2-a]quinoline skeleton has been described. These new annulated 1,3-azaphospholes exhibit good photoelectric performance and can be used as the emitting dopant in organic light-emitting diodes (OLEDs) and dye for bioimaging.