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1403873-48-2

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1403873-48-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1403873-48-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,3,8,7 and 3 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1403873-48:
(9*1)+(8*4)+(7*0)+(6*3)+(5*8)+(4*7)+(3*3)+(2*4)+(1*8)=152
152 % 10 = 2
So 1403873-48-2 is a valid CAS Registry Number.

1403873-48-2Downstream Products

1403873-48-2Relevant articles and documents

A modular synthesis of polysubstituted indolizines

Kucukdisli, Murat,Opatz, Till

, p. 4555 - 4564 (2012/11/07)

The N-alkylation of pyridines with cyanohydrin triflates or α-halonitriles furnishes 1-(1-cyanoalkyl)pyridinium salts that can react with nitroolefins under basic conditions to furnish polysubstituted indolizines. Overall, the indolizine core can be constructed from a pyridine, two aldehydes, and a nitroalkane, and no undesired functional groups remain in the products. When bromoacetonitrile was used for the N-alkylation, indolizine-3-carbonitriles were obtained instead. The pyridine component may be replaced by other azines, giving rise to related heterocyclic systems. Polysubstituted indolizines were synthesized through [3+2] cycloaddition of nitroalkenes with pyridinium ylides. In contrast to previous reports of 1,3-dipolar cycloadditions, in this work no electron-deficient groups remain in the products. Copyright

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