- Illuminating Stannylation
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We have developed photoboosted stannylation reactions of terminal alkynes (linear-selective hydrostannylation) and fluoroarenes (defluorostannylation), in which the stannyl anion is photoexcited to an excited triplet (T1) stannyl diradical species. This u
- Sakamoto, Kyoka,Nagashima, Yuki,Wang, Chao,Miyamoto, Kazunori,Tanaka, Ken,Uchiyama, Masanobu
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supporting information
p. 5629 - 5635
(2021/05/04)
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- Optically Active Helical Lanthanide Complexes: Storable Chiral Lewis Acidic Catalysts for Enantioselective Diels–Alder Reaction of Siloxydienes
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Lanthanide triflates and a series of hexadentate chiral ligand complexes were synthesized. X-ray-quality crystals were obtained from mixtures of the lanthanide complexes, which were helical in shape. The complexes showed Lewis acidity and catalyzed the enantioselective Diels–Alder reaction of electron-rich siloxydienes. The complexes were stable enough to be stored at ambient temperature on a laboratory bench and retained their Lewis acidity even after a month.
- Harada, Shinji,Nakashima, Saki,Nishida, Atsushi,Oishi, Wakana,Sekino, Shihori
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supporting information
(2020/02/05)
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- Platinum coordination compound, organic light emitting diode, and apparatus capable of emitting visible light or near infrared light
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The present invention provides a platinum coordination compound, an organic light emitting diode, and an apparatus capable of emitting visible light or near infrared light. The platinum coordination compound has a structure represented by the following general formula (I), wherein A1-A4 are respectively and independently an unsaturated 5-membered ring or an unsaturated 6-membered ring, X is carbonor nitrogen, the formal charge number of the first chelating ligand having A1 and A4 is negative univalence, and the formal charge number of the second chelating ligand having A2 and A3 is negative univalence. According to the present invention, the platinum coordination compound has advantages of stable structure, excellent luminous efficiency and simple synthesis steps. The general formula (I)is defined in the specification.
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Paragraph 0099; 0100
(2018/07/07)
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- PLATINUM COMPLEX, OLED AND APPARATUS FOR PROVIDING VISIBLE EMISSION OR NEAR-INFRARED EMISSION
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A platinum complex, an OLED and an apparatus for providing visible emission or near-infrared (NIR) emission using the same are described.? The platinum complex has a structure represented by formula (I): (I) wherein A1 to A4 each independently represent a 5-membered or 6-membered unsaturated ring, a first chelating ligand including A1 and A4 fragments has a minus one formal charge, and a second chelating ligand including A2 and A3 fragments has a minus one formal charge.
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Paragraph 0042
(2018/03/28)
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- Ru(II) complexes of tetradentate ligands related to 2,9-Di(pyrid-2′- yl)-1,10-phenanthroline
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A series of 1,10-phenanthrolines were prepared having additional ligating substituents at the 2,9-positions. These substituents were either a 4-substituted pyrid-2-yl, quinolin-2-yl, 1,8-naphthyrid-2-yl, N-methyl imidazo-2-yl, or N-methyl benzimidazo-2-yl group. Additionally, 3,6-di-(pyrid-2′-yl)-dipyrido[3,2-a:2′,3′-c]phenazine was prepared. All but two of these ligands coordinated Ru(II) in a tetradentate equatorial fashion with two 4-methylpyridines bound in the axial sites. An X-ray structure analysis of the diimidazoyl system indicates considerable distortion from square planar geometry in the equatorial plane. Previously reported variations in the axial ligand for such complexes appear to have a stronger effect on the electronic absorption and redox properties of the system than similar changes in the equatorial ligand. In the presence of excess Ce(IV) as a sacrificial oxidant at pH 1, all the systems examined catalyze the decomposition of water to generate oxygen. Turnover numbers are modest, ranging from 146 to 416.
- Zhang, Gang,Zong, Ruifa,Tseng, Huan-Wei,Thummel, Randolph P.
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p. 990 - 998
(2008/10/09)
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- POLYCYCLIC PYRIDINES AS POTASSIUM ION CHANNEL MODULATORS
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The present invention provides a genus of polycyclic pyridines that are useful as modulators of potassium ion channels. The modulators of the invention are of use in both therapeutic and diagnostic methods.
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Page/Page column 50-51
(2010/02/14)
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- HIV protease inhibiting compounds
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A compound of the formula is disclosed as an HIV protease inhibitor. Methods and compositions for inhibiting an HIV infection are also disclosed.
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Page/Page column 133
(2010/02/12)
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- POLYCYCLIC PYRIMIDINES AS POTASSIUM ION CHANNEL MODULATORS
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The present invention provides a genus of polycyclic pyrimidines that are useful as modulators of potassium ion channels. The modulators of the invention are of use in both therapeutic and diagnostic methods.
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Page/Page column 42
(2008/06/13)
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- Polycyclic pyrazines as potassium ion channel modulators
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The present invention provides a genus of polycyclic pyrazines that are useful as modulators of potassium ion channels. The modulators of the invention are of use in both therapeutic and diagnostic methods.
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Page/Page column 19
(2010/02/14)
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- High molecular weight CuII coordination polymers and their characterisation by electrospray mass spectrometry (ESMS)
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The ligands L and ligand L* self-assemble with CuII in different solvents to give a mixture of coordination polymers. These artificial nanostructures have been characterised with the help of ESMS, the only analytical tool that allows their unambiguous characterisation. Kinetic and thermodynamic ESMS studies have excluded the possibility that these compounds form aggregates during the ES process.
- Nierengarten, Helene,Rojo, Javier,Leize, Emmanuelle,Lehn, Jean-Marie,Van Dorsselaer, Alain
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p. 573 - 579
(2007/10/03)
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