نتایج جستجو برای: 12 tetrahydroa xanthene 11 ones

تعداد نتایج: 975783  

Journal: :Journal of the American Chemical Society 2014
Anna Lewandowska-Andralojc David C Grills Jie Zhang R Morris Bullock Akira Miyazawa Yuji Kawanishi Etsuko Fujita

We have investigated the kinetics of novel carbon-to-metal hydrogen atom transfer reactions, in which homolytic cleavage of a C-H bond is accomplished by a single metal-centered radical. Time-resolved IR spectroscopic measurements revealed efficient hydrogen atom transfer from xanthene, 9,10-dihydroanthracene, and 1,4-cyclohexadiene to Cp(CO)2Os(•) and (η(5)-(i)Pr4C5H)(CO)2Os(•) radicals, forme...

Journal: :Acta Crystallographica Section E Structure Reports Online 2010

2014
Yonghoon Kwon Parkyong Song Jong Hyuk Yoon Jaewang Ghim Dayea Kim Byungjun Kang Taehoon G. Lee Jin-Ah Kim Joong-Kwon Choi In Kwon Youn Hyeon-Kyu Lee Sung Ho Ryu Thierry Alquier

5' AMP-activated protein kinase (AMPK) is a highly conserved serine-threonine kinase that regulates energy expenditure by activating catabolic metabolism and suppressing anabolic pathways to increase cellular energy levels. Therefore AMPK activators are considered to be drug targets for treatment of metabolic diseases such as diabetes mellitus. To identify novel AMPK activators, we screened xan...

2009
Jin Mizuguchi Kazuyuki Sato

The title compound, C(28)H(30)N(2)O(3)·C(9)H(10)O(5), is a well known red leuco complex of 2-(6-diethyl-amino-3-diethyl-iminio-3H-xanthene-9-yl)benzoate (rhodamine B base abbreviated to RBB: leuco dye) with ethyl gallate (EG: developer). The structure of the complex at room temperature has recently been reported by Sekiguchi, Takayama, Gotanda & Sano [(2007) Chem. Lett. 36, 1010-1011]. The RBB-...

Journal: :Chemical communications 2013
Björn Zyska Matthias Schwalbe

An up to 18-fold increase of the turnover frequency (TOF) in the catalase-like hydrogen peroxide dismutation reaction is observed by incorporation of substituents in the β-position of xanthene-modified iron corroles.

Journal: :Synfacts 2023

Key words oxonium ions - stereogenic oxygen oxepin xanthene pyramidal inversion quantum calculation

Journal: :Organic & biomolecular chemistry 2014
Marco Franceschin Daniele Nocioni Annamaria Biroccio Emanuela Micheli Stefano Cacchione Chiara Cingolani Alessandro Venditti Pasquale Zizza Armandodoriano Bianco Alessandro Altieri

Following the results we previously reported on a series of xanthene and xanthone derivatives as G-quadruplex stabilizing ligands, in order to obtain a more selective compound with respect to the previous generation of derivatives, we decided to modify the structure of the core ligand, specifically its aromatic extension. In particular, here we report the design, synthesis and activity data of ...

2008
Jin Mizuguchi

The title compound, C(28)H(30)N(2)O(3)·C(9)H(10)O(5), is a well known red leuco complex of 2-(6-diethylamino-3-diethyl-iminio-3H-xanthen-9-yl)benzoate (rhodamine B base abbreviated to RBB, a leuco dye) with ethyl gallate (EG, developer). The structure of the complex at room temperature has recently been reported by Sekiguchi, Takayama, Gotanda & Sano [Chem. Lett. (2007 ▶), 36, 1010-1011]. We ha...

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