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482-59-7

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482-59-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 482-59-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,8 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 482-59:
(5*4)+(4*8)+(3*2)+(2*5)+(1*9)=77
77 % 10 = 7
So 482-59-7 is a valid CAS Registry Number.

482-59-7Relevant articles and documents

Dynamic Covalent Metathesis in the C=C/C=N Exchange between Knoevenagel Compounds and Imines

Gu, Ruirui,Flidrova, Karolina,Lehn, Jean-Marie

supporting information, p. 5560 - 5568 (2018/05/01)

Fast and reversible dynamic covalent C=C/C=N exchange takes place without catalyst in nonpolar solvents between barbiturate-derived Knoevenagel (Kn) compounds and imines. A detailed study of the reaction indicates that it proceeds by an associative organo-metathesis mechanism involving the formation of a four-membered ring azetidine intermediate by addition of the imine C=N group to the C=C bond of the Kn compound. This intermediate could be generated cleanly and stabilized at low temperature by condensation of the o,p-dinitrophenyl Kn derivative with the cyclic imine 1-azacyclohexene. It was characterized by extensive NMR and mass spectrometric studies. The process described represents a genuine dynamic covalent organo-metathesis through a four-membered ring adduct as intermediate. It paves the way for the exploration of a wide set of dynamic systems involving (strongly) polarized C=C bonds and various imines, extending also into covalent dynamic polymers and polymolecular assemblies.

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