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151449-97-7

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151449-97-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 151449-97-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,1,4,4 and 9 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 151449-97:
(8*1)+(7*5)+(6*1)+(5*4)+(4*4)+(3*9)+(2*9)+(1*7)=137
137 % 10 = 7
So 151449-97-7 is a valid CAS Registry Number.

151449-97-7Relevant articles and documents

Chemical reactions of 2-methyl-5,7-diphenyl-6,7-dihydropyrazolo[1,5-a] pyrimidine

Lipson,Desenko,Shirobokova,Borodina,Musatov

, p. 492 - 495 (2005)

The hydrolysis, oxidation, reduction, alkylation, formylation, and nitrosation reactions of 2-methyl-5,7-diphenyl-6,7-dihydropyrazolo[1,5-a] pyrimidine have been studied. 2005 Springer Science+Business Media, Inc.

Carbon-Carbon Bond Cleavage Reaction: Synthesis of Multisubstituted Pyrazolo[1,5-a]pyrimidines

Saikia, Pallabi,Gogoi, Sanjib,Boruah, Romesh C

, p. 6885 - 6889 (2015/10/06)

A new carbon-carbon bond cleavage reaction was developed for the efficient synthesis of multisubstituted pyrazolo[1,5-a]pyrimidines. This base induced reaction of 1,3,5-trisubstituted pentane-1,5-diones and substituted pyrazoles afforded good yields of the pyrazolo[1,5-a]pyrimidines.

Pyrazolopyrimidines based on 5-aminopyrazoles unsubstituted at the position 1

Nam,Grandberg,Sorokin

, p. 1371 - 1374 (2007/10/03)

By condensation of various symmetric β-diketones with a series of 5-aminopyrazoles that are unsubstituted at the position 1, we have obtained a series of pyrazolo[1,5-a]pyrimidines that are of interest as physiologically active compounds. Hexafluoroacetylacetone reacts in another direction, forming pyrazolo[4,5-b]pyridine.

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