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7273-36-1

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7273-36-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 7273-36-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,7 and 3 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 7273-36:
(6*7)+(5*2)+(4*7)+(3*3)+(2*3)+(1*6)=101
101 % 10 = 1
So 7273-36-1 is a valid CAS Registry Number.

7273-36-1Downstream Products

7273-36-1Relevant articles and documents

Copper-Catalyzed Intramolecular C-H Amination: A New Entry to Substituted Xanthine Derivatives

Shimizu, Maki,Hayama, Noboru,Kimachi, Tetsutaro,Inamoto, Kiyofumi

, p. 4183 - 4190 (2017/09/12)

Catalytic synthesis of xanthines was achieved in the presence of a copper catalyst. The process involves copper-catalyzed intramolecular C-H amination of benzamidines that possess a uracil moiety and produces variously substituted xanthines generally in good to high yields. This work introduces a new, facile approach to polysubstituted xanthine compounds..

Synthesis and characterization of amino-NHC coinage metal complexes and application for C-H activation of caffeine

Huang, Hsuan-Jui,Lee, Wei-Chih,Yap, Glenn P.A.,Ong, Tiow-Gan

, p. 64 - 73 (2014/05/06)

This paper describes the synthesis and characterization of silver, copper and gold complexes supported by several amino-NHC ligands with different amino side arms. The transmetallation process using silver-NHC complexes can be used to prepare amino-NHC copper and gold complexes easily in high yield. In addition, the catalytic activities of copper complexes are examined for arylation of caffeine via C-H bond activation.

Synthesis of 8-substituted xanthine derivatives by Suzuki cross-coupling reaction

Vollmann, Karl,Mueller, Christa E.

, p. 871 - 879 (2007/10/03)

A Suzuki cross-coupling reaction procedure was developed to prepare 8-substituted 3,7-dihydropurine-2,6-dione (xanthine) derivatives. 8-Halogen-substituted xanthines were reacted with phenyl- and styrylboronic acids. The best results were obtained using tetrakis(triphenylphosphine)palladium(0) and tripotassium phosphate in dimethylformamide. The developed procedure allows for a convergent synthesis of pharmacologically active 8-substituted xanthine derivatives.

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