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54054-63-6

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54054-63-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54054-63-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,0,5 and 4 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 54054-63:
(7*5)+(6*4)+(5*0)+(4*5)+(3*4)+(2*6)+(1*3)=106
106 % 10 = 6
So 54054-63-6 is a valid CAS Registry Number.

54054-63-6Relevant articles and documents

Versatile One-Pot Synthesis of Polysubstituted Cyclopent-2-enimines from α,β-Unsaturated Amides: Imino-Nazarov Reaction

Fan, Ting,Wang, Ao,Li, Jia-Qi,Ye, Jian-Liang,Zheng, Xiao,Huang, Pei-Qiang

supporting information, p. 10352 - 10356 (2018/07/30)

The imino-Nazarov cyclization of the polysubstituted pentan-1,4-diene-3-imines was realized. To this aim, a one-pot procedure involving reductive alkenyliminylation of α,β-unsaturated secondary amides with potassium organotrifluoroborates, followed by acid-catalyzed imino-Nazarov cyclization of the polysubstituted pentan-1,4-diene-3-imine intermediates, was studied systematically. This mild, operationally simple, flexible, and high-yielding protocol efficiently affords polysubstituted pentan-1,4-diene-3-imines, cyclopentenimines, and α-amino cyclopentenones, which are useful scaffolds in organic synthesis. The substituent effect at the C2 position of the polysubstituted pentan-1,4-diene-3-imines was studied by means of density-functional theory calculations. Results suggested that the electron-donating group facilitates the imino-Nazarov cyclization process.

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