- Tandem Oxidative Ring Expansion for Synthesis of Dibenzocyclooctaphenanthrenes
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A novel tandem single-electron oxidative ring expansion reaction has been developed for the construction of the saddle-shaped polycyclic arenes fused with cyclooctatetraene, that is, dibenzo[3,4:7,8]cycloocta[1,2-l]phenanthrenes (dbCOTPs). The combination
- Yang, Lu,Matsuyama, Hidenori,Zhang, Sheng,Terada, Masahiro,Jin, Tienan
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p. 5121 - 5125
(2020/07/15)
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- Novel phenanthrene compounds, a method of making the same and organic electronic devices using the same
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The present invention relates to novel phenanthrene compounds having excellent luminous efficiency and lifespan, a manufacturing method thereof, and an organic electronic device including the novel phenanthrene compounds. The novel phenanthrene compounds according to the present invention can form steric conformation, can improve performance through improvement of electronic density, also can improve performance by regulating the molecular weight and position of a functional group because the molecular weight of the compounds is low, and can minutely regulate luminous wavelength and improve performance according to types of the functional groups. As the result, the organic electronic device including the novel phenanthrene compounds has high brightness, excellent thermal resistance, long lifespan, and high efficiency.
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Page/Page column 21; 22; 27; 28; 31; 35; 37
(2019/10/22)
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- PROCESS FOR THE PREPARATION OF ASENAPINE AND INTERMEDIATE PRODUCTS USED IN SAID PROCESS.
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The invention relates to a novel process for the preparation of asenapine, i.e. trans-5- chloro-2-methyl-2,3,3a, 12b-tetrahydro-1 H-dibenz[2,3:6,7]oxepino[4,5-c]pyrrole, as well as to novel intermediate products for use in said process.
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Page/Page column 17-18
(2008/06/13)
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