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135450-71-4

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135450-71-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135450-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,4,5 and 0 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 135450-71:
(8*1)+(7*3)+(6*5)+(5*4)+(4*5)+(3*0)+(2*7)+(1*1)=114
114 % 10 = 4
So 135450-71-4 is a valid CAS Registry Number.

135450-71-4Downstream Products

135450-71-4Relevant articles and documents

Acid-Free Silver-Catalyzed Cross-Dehydrogenative Carbamoylation of Pyridines with Formamides

Han, Wei,Jin, Fengli,Zhao, Qian,Du, Hongyan,Yao, Lifang

, p. 1854 - 1859 (2016)

Primary pyridylcarboxamides are prevalent parent structures in bioactive molecules and have the apparent advantages over N-protected derivatives as synthetic building blocks. However, no practical methods have been developed for direct synthesis of this compound class from unfunctionalized pyridines. We herein present a general, safe, concise, acid-free, and highly selective method for the C2-carbamoylation of pyridines with unprotected formamide and N-methyl formamide through the cleavage of two C-H bonds.

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