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33149-53-0

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33149-53-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 33149-53-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,1,4 and 9 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 33149-53:
(7*3)+(6*3)+(5*1)+(4*4)+(3*9)+(2*5)+(1*3)=100
100 % 10 = 0
So 33149-53-0 is a valid CAS Registry Number.

33149-53-0Relevant articles and documents

Palladium-catalyzed carbonylative synthesis of quinazolinones from 2-aminobenzamide and aryl bromides

Wu, Xiao-Feng,He, Lin,Neumann, Helfried,Beller, Matthias

, p. 12635 - 12638 (2013)

C from CO! A straightforward procedure for the carbonylative synthesis of quinazolinones from readily available 2-aminobenzamide and aryl bromides has been developed. In the presence of a palladium catalyst, various quinazolinones were produced in moderate to excellent yields. Remarkably, no chromatography was needed for purification (see scheme). Copyright

Sur les possibilites de formation de pyrimidines a partir d'halogeno-3 methoxy-4 coumarines

Takagi, Kaname,Hubert-Habart, Michel

, p. 444 - 448 (2007/10/02)

3-chloro and 3-bromo-4-methoxycoumarins are tranformed by guanidine into 2-amino-5-halo-6-(2-hydroxyphenyl)-4-oxo-3,4-dihydropyrimidines.However, by treatment with benzamidine and acetamidine they lead, not only to the expected pyrimidines, but also to th

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