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1438417-76-5

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1438417-76-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1438417-76-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,8,4,1 and 7 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1438417-76:
(9*1)+(8*4)+(7*3)+(6*8)+(5*4)+(4*1)+(3*7)+(2*7)+(1*6)=175
175 % 10 = 5
So 1438417-76-5 is a valid CAS Registry Number.

1438417-76-5Downstream Products

1438417-76-5Relevant articles and documents

Bifunctional chiral urea catalyzed highly enantioselective Michael addition of cyclic 1,3-dicarbonyl compounds to 2-enoylpyridines

Molleti, Nagaraju,Allu, Suresh,Ray, Sumit K.,Singh, Vinod K.

supporting information, p. 3241 - 3244 (2013/06/27)

A highly efficient cinchona alkaloid based bifunctional urea catalyzed enantioselective conjugate addition of cyclic 1,3-dicarbonyl compounds to a range of β-substituted 2-enoylpyridines has been developed. Chiral 2,4-diaryl substituted 1,4-dihydropyridines could easily be accessible from these Michael adducts. Significantly, this asymmetric methodology could afford both enantiomers of the products with the same level of enantioselectivities by using pseudoenantiomeric catalysts with up to 98% ee and in excellent yields.

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