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79405-51-9

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79405-51-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 79405-51-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,4,0 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 79405-51:
(7*7)+(6*9)+(5*4)+(4*0)+(3*5)+(2*5)+(1*1)=149
149 % 10 = 9
So 79405-51-9 is a valid CAS Registry Number.

79405-51-9Upstream product

79405-51-9Relevant articles and documents

A Metal-Free Domino Process for Regioselective Synthesis of 1,2,4-Trisubstituted Pyrroles: Application toward the Formal Synthesis of Ningalin B

Kumar, Virendra,Awasthi, Annapurna,Metya, Abhisek,Khan, Tabrez

, p. 11581 - 11595 (2019/10/02)

A new one-pot, transition-metal, acid/base-free domino process is developed for the regioselective synthesis of 1,2,4-trisubstituted pyrroles. The process involves 1,3-dipolar cycloaddition of unsymmetrical azomethine ylide resulting from the thermal C-C bond cleavage of unactivated aziridines with β-bromo-β-nitrostyrene, followed by a cascade of elimination and aromatization reaction sequence to preferentially furnish 1,2,4-trisubstituted pyrroles instead of the expected 1,2,3-trisubstituted pyrroles, in good to excellent yields. Further, the application of the methodology for the formal synthesis of ningalin B is delineated.

A facile route to a versatile synthon for preparation of cis-pyrethroids

Babler,Invergo

, p. 2743 - 2746 (2007/10/02)

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