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849207-19-8

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849207-19-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 849207-19-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,4,9,2,0 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 849207-19:
(8*8)+(7*4)+(6*9)+(5*2)+(4*0)+(3*7)+(2*1)+(1*9)=188
188 % 10 = 8
So 849207-19-8 is a valid CAS Registry Number.

849207-19-8Relevant articles and documents

Synthesis of N-Heterocycles by Dehydrogenative Annulation of N-Allyl Amides with 1,3-Dicarbonyl Compounds

Wu, Zheng-Jian,Li, Shi-Rui,Xu, Hai-Chao

supporting information, p. 14070 - 14074 (2018/10/15)

Dehydrogenative annulation under oxidizing reagent-free conditions is an ideal strategy to construct cyclic structures. Reported herein is an unprecedented synthesis of pyrrolidine and tetrahydropyridine derivatives through electrochemical dehydrogenative annulation of N-allyl amides with 1,3-dicarbonyl compounds. The electrolytic method employs an organic redox catalyst, which obviates the need for oxidizing reagents and transition-metal catalysts. In these reactions, the N-allyl amides serve as a four-atom donor to react with dimethyl malonate to give pyrrolidines by a (4+1) annulation, or with β-ketoesters to afford tetrahydropyridine derivatives by a (4+2) annulation.

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