Oxygen Insertion of o-Quinone under Catalytic Hydrogenation Conditions
摘要:
An oxygen-insertion reaction that transforms an o-quinone and a conjugated alpha-diketone substrate Into an anhydride product or derivative under catalytic hydrogenation conditions is reported. The experiments and computations indicate that the oxygen insertion proceeds via a radical mechanism mediated by an acetoxyl radical.
Fused imidazoles as potential chemical scaffolds for inhibition of heat shock protein 70 and induction of apoptosis. Synthesis and biological evaluation of phenanthro[9,10-d]imidazoles and imidazo[4,5-f][1,10]phenanthrolines
Fused imidazoles as potential chemical scaffolds for inhibition of heat shock protein 70 and induction of apoptosis. Synthesis and biological evaluation of phenanthro[9,10-d]imidazoles and imidazo[4,5-f][1,10]phenanthrolines
作者:Alpa Patel、Swee Y. Sharp、Katelan Hall、William Lewis、Malcolm F. G. Stevens、Paul Workman、Christopher J. Moody
DOI:10.1039/c6ob00471g
日期:——
Fused imidazoles inhibit growth of human cancer cell lines, and the Hsp70 pathway in cells, and induce apoptosis.
Optimizing Electron Transfer Mediators Based on Arylimidazoles by Ring Fusion: Synthesis, Electrochemistry, and Computational Analysis of 2-Aryl-1-methylphenanthro[9,10-<i>d</i>]imidazoles
作者:Robert Francke、R. Daniel Little
DOI:10.1021/ja410865z
日期:2014.1.8
phenanthro[9,10-d]imidazoles but also to improved stability of the corresponding radical cation. These concepts were verified with eight new phenanthro[9,10-d]imidazole derivatives, using cyclic voltammetry and DFT calculations. For this purpose, an optimized and general synthetic route to the desired compounds was developed. An excellent linear correlation of the calculated effective ionization potentials with
Tetraalkoxyphenanthrene: A New Precursor for Luminescent Conjugated Polymers
作者:Britta N. Boden、Katherine J. Jardine、Alfred C. W. Leung、Mark J. MacLachlan
DOI:10.1021/ol060433s
日期:2006.4.1
We have developed a convenient synthesis of tetraalkoxyphenanthrene derivatives and demonstrated their use to form luminescent conjugated oligomers and polymers. Palladium-catalyzed cross-coupling reactions of 2,7-diiodo-3,6-dimethoxy-9,10-di(2-ethylhexyloxy)phenanthrene produced high molecular weight poly(p-phenylene ethynylene)s and low molecular weight poly(p-phenylene vinylene)s. These new polymers, which are luminescent in the solid state and in solution, may be useful for developing LED or solar cell devices, or in chemical sensors.
Oxygen Insertion of <i>o</i>-Quinone under Catalytic Hydrogenation Conditions
作者:Da-Li Zhang、Li-Yan Zhou、Jun-Min Quan、Wei Zhang、Lian-Quan Gu、Zhi-Shu Huang、Lin-Kun An
DOI:10.1021/ol400164e
日期:2013.3.15
An oxygen-insertion reaction that transforms an o-quinone and a conjugated alpha-diketone substrate Into an anhydride product or derivative under catalytic hydrogenation conditions is reported. The experiments and computations indicate that the oxygen insertion proceeds via a radical mechanism mediated by an acetoxyl radical.