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1447331-54-5

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1447331-54-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1447331-54-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,7,3,3 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1447331-54:
(9*1)+(8*4)+(7*4)+(6*7)+(5*3)+(4*3)+(3*1)+(2*5)+(1*4)=155
155 % 10 = 5
So 1447331-54-5 is a valid CAS Registry Number.

1447331-54-5Downstream Products

1447331-54-5Relevant articles and documents

Effective synthesis of 3,5-diaryl-(1H)-pyrazin-2-ones via microwave mediated ring closure

Johannes, Eugen,Horbert, Rebecca,Schlosser, Joachim,Schmidt, Dorian,Peifer, Christian

, p. 4067 - 4072 (2013/07/26)

In this study we report on a flexible straight forward synthesis toward novel 3,5-diaryl-(1H)-pyrazin-2-ones. Our synthetic strategy involved an acyclic di-keto derivative as key intermediate. The final pyrazin-2-one ring closure reaction was yield-optimized by using a microwave mediated procedure and ammoniumacetate as nitrogen source. Our method is a suitable alternative to palladium-catalyzed coupling reactions for the 3,5-diaryl decoration of the (1H)-pyrazin-2-one scaffold. Since the (1H)-pyrazin-2-ones is present as scaffold in a number of biologically active compounds the reported synthetic platform is a useful approach to generate a set of highly diverse 3,5-diaryl-(1H)-pyrazin-2-one compounds.

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