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113273-88-4

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113273-88-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113273-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,2,7 and 3 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 113273-88:
(8*1)+(7*1)+(6*3)+(5*2)+(4*7)+(3*3)+(2*8)+(1*8)=104
104 % 10 = 4
So 113273-88-4 is a valid CAS Registry Number.

113273-88-4Downstream Products

113273-88-4Relevant articles and documents

Lithium Bromide/Triethylamine Induced Cycloaddition of N-Alkylidene 2-Amino Esters and Amides to Electron-Deficient Olefins with High Regio- and Stereoselectivity

Tsuge, Otohiko,Kanemasa, Shuji,Yoshioka, Manabu

, p. 1384 - 1391 (2007/10/02)

The imines of 2-amino esters and amides derived from glycine, alanine, and valine are deprotonated by the action of a lithium halide and triethylamine (or DBU).The resulting anionic intermediates undergo highly regio- and stereoselective cycloadditions with a variety of olefins activated by carbonyl-type substituents to produce stereochemically defined derivatives of proline esters or amides.The scope and limitations of this novel cycloaddition are discussed.

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