1141-39-5Relevant articles and documents
SYNTHESIS OF SOME NEW ARYLINDOLES
Gogrichiani, E. O.,Chikvaidze, I. Sh.,Dzhibladze, L. I.,Tsotadze, M. B.,Samsoniya, Sh. A.,Suvorov, N. N.
, p. 1170 - 1173 (1994)
New indole derivatives - 2-ethoxycarbonyl-5-(p-acetylphenyl)indole and para-substituted 2-diphenylindoles - key compounds for synthesis of new bisindoles, were synthesized from 4-acetyl-4'-nitrodiphenyl.
A new cobalt triangular prism supramolecular flask: Encapsulation of a quinhydrone cofactor for hydrogenation of nitroarenes with high selectivity and efficiency
Zheng, Sijia,Zhao, Liang,Wei, Jianwei,He, Cheng,Liu, Guangzhou,Duan, Chunying
, (2019/10/16)
A new M6L3 metal-organic triangular prism host Co–L1 was synthesized that contains a sufficiently large cavity for encapsulation of a quinhydrone (QHQ) electron transporter to form charge-transfer complexes for accelerating electron delivery. Through the strong coordinating ability of the ONP chelator, a suitable redox potential was obtained for the combination of light-driven proton reduction with the selective hydrogenation of nitro groups. The experimental results showed that the regulation of redox potential is very beneficial for hydrogen production and that the introduction of QHQ accelerates electron transfer and increases the reaction rate. Control experiments based on an inhibitor and a mononuclear compound resembling the cobalt corner of the triangular prism suggest enzyme-like behaviour. This synthetic platform, in which the supramolecular systems exhibit high activity and stability, provides an alternative strategy to selectively hydrogenate nitroarenes using light as a clean energy source.
Microwave-assisted Suzuki-Miyaura reactions with an insoluble pyridine-aldoxime Pd-catalyst
Solodenko, Wladimir,Sch?n, Uwe,Messinger, Josef,Glinschert, Anja,Kirschning, Andreas
, p. 1699 - 1702 (2007/10/03)
The preparation of a solid Pd(II)-precatalyst and its use in microwave-assisted Suzuki-Miyaura reactions in water is described. The precatalyst is obtained by treatment of 4-pyridine-aldoxime with Na 2PdCl4 and is insoluble in organic solvents as well as in water. Its robustness under microwave conditions and its insolubility allows simple reuse in 'teabags'.