62066-32-4Relevant academic research and scientific papers
An Oxidant- And Catalyst-Free Synthesis of Dibenzo[ a, c ]carbazoles via UV Light Irradiation of 2,3-Diphenyl-1 H -indoles
Hou, Rong,Kang, Yang,Liang, Yong,Min, Xiaoyan,Wang, Tao,Zhang, Zunting
, (2021/12/13)
An efficient methodology for the synthesis of dibenzo[a,c]- carbazoles via annulation of 2,3-diphenyl-1H-indoles in EtOH under UV light irradiation (λO = 365 nm) along with hydrogen evolution is described. This method exhibits the advantages of mild reaction conditions, no requirement of any oxidants and catalysts, and release of hydrogen as the only byproduct. Notably, the mechanism investigation confirms that the trans-4b,8a-dihydro-9H-dibenzo[a,c]carbazole intermediate could convert into cis-4b,8a-dihydro-9H-dibenzo[a,c]carbazole, which relies on the nitrogen atom of the indole ring. This is followed by intramolecular dehydrogenation which yields the dibenzo[a,c]carbazoles. 2021. Thieme. All rights reserved.
Rhodium-catalyzed acyl-transfer reaction between benzyl ketones and thioesters: Synthesis of unsymmetric ketones by ketone CO-C bond cleavage and intermolecular rearrangement
Arisawa, Mieko,Kuwajima, Manabu,Toriyama, Fumihiko,Li, Guangzhe,Yamaguchi, Masahiko
, p. 3804 - 3807 (2012/09/07)
In the presence of catalytic amounts of RhH(CO)(PPh3) 3 and 1,2-bis(diphenylphosphino)benzene (dppBz), acyl groups were transferred between benzyl ketones and thioesters/aryl esters. The rhodium complex catalyzed the cleavage of keto
Optimizing of 2,3-diarylindenes as fluorescent estrogens: Variation of the acceptor group, ortho substitution of the 2-ring, and C-1 methylation
Anstead,Katzenellenbogen
, p. 1754 - 1761 (2007/10/02)
In an attempt to elucidate steric and electronic factors that affect the fluorescence and estrogen receptor binding properties of 2,3-diarylindenes, we have prepared and examined the behavior of 11 analogues bearing substituents on the 1-position or on th
