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1292785-57-9

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1292785-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1292785-57-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,2,7,8 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1292785-57:
(9*1)+(8*2)+(7*9)+(6*2)+(5*7)+(4*8)+(3*5)+(2*5)+(1*7)=199
199 % 10 = 9
So 1292785-57-9 is a valid CAS Registry Number.

1292785-57-9Downstream Products

1292785-57-9Relevant articles and documents

Synthesis of functionalized arylpyridines and -pyrimidines by domino [4+2]/retro [4+2] cycloadditions of electron-rich dienes with alkynylpyridines and -pyrimidines

Abid, Obaid-Ur-Rahman,Nawaz, Muhammad,Ibad, Muhammad Farooq,Khera, Rasheed Ahmad,Iaroshenko, Viktor,Langer, Peter

experimental part, p. 2185 - 2191 (2011/04/26)

Aryl-substituted pyridines and pyrimidines were prepared by [4+2] cycloadditions of alkynyl-substituted pyridines and -pyrimidines with electron-rich dienes. The reactions proceed by formation of a bridged cycloadduct and subsequent thermal extrusion of ethylene. The pyridine moiety plays a crucial role for the success of the reaction.

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