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859831-53-1

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859831-53-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 859831-53-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,9,8,3 and 1 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 859831-53:
(8*8)+(7*5)+(6*9)+(5*8)+(4*3)+(3*1)+(2*5)+(1*3)=221
221 % 10 = 1
So 859831-53-1 is a valid CAS Registry Number.

859831-53-1Relevant articles and documents

CuCl-Catalyzed Hydroxylation of N-Heteroarylcarbazole Bromide: Approach for the Preparation of N-Heteroarylcarbazolyl Phenols and Its Application in the Synthesis of Phosphorescent Emitters

Li, Guijie,Zhao, Xiangdong,Fang, Kun,Li, Jian,She, Yuanbin

, p. 8634 - 8644 (2017)

An efficient and practical CuCl-catalyzed hydroxylation of N-heteroarylcarbazole bromide for the preparation of N-heteroarylcarbazolyl phenols with a broad functional group scope and yield up to 98% was developed. It was found that both the ligand and base played critical roles in the functional group transformation and that different products could be generated by changing the base for some substrates. t-BuONa was demonstrated to be a better base for the catalytic system to avoid the formation of the ether byproduct. In addition, this approach was suitable for large-scale preparation and was successfully applied in the gram-scale synthesis of phosphorescent emitters PtNON and PdNON, demonstrating its practicability in organic synthesis methodology and materials science. Furthermore, the X-ray crystal diffraction, DFT calculations, and photophysical properties were also investigated for the metal complexes.

TETRADENTATE AND OCTAHEDRAL METAL COMPLEXES CONTAINING NAPHTHYRIDINOCARBAZOLE AND ITS ANALOGUES

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Paragraph 0271; 0272, (2016/12/26)

Tetradentate and octahedral metal complexes suitable for use as phosphorescent or delayed fluorescent and phosphorescent emitters in display and lighting applications.

FLUORENES AND CARBAZOLES AS LIGANDS OF THE EP2 RECEPTOR

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Page/Page column 37; 43-44, (2010/11/27)

The present invention relates to carbazoles/fluorenes, to processes for their preparation and to their use for preparing pharmaceutical agents for the treatment of disorders connected to the EP2 receptor.

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