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1437656-93-3

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1437656-93-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1437656-93-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,7,6,5 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1437656-93:
(9*1)+(8*4)+(7*3)+(6*7)+(5*6)+(4*5)+(3*6)+(2*9)+(1*3)=193
193 % 10 = 3
So 1437656-93-3 is a valid CAS Registry Number.

1437656-93-3Relevant academic research and scientific papers

Chiral pyrroline-based Ugi-three-component reactions are under kinetic control

Van Rijssel, Erwin R.,Goumans, Theodorus P. M.,Lodder, Gerrit,Overkleeft, Herman S.,Van Der Marel, Gijsbert A.,Codee, Jeroen D. C.

supporting information, p. 3026 - 3029 (2013/07/26)

Although it is often assumed that the stereochemistry in Ugi multicomponent reactions is determined in the final Mumm rearrangement step, experimental and computational evidence that Ugi reactions on hydroxylated pyrrolines proceed under kinetic control is reported. The stereochemistry of the reaction is established with the addition of the isocyanide to the intermediate iminium ion, whose conformation is determined by its substitution pattern.

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