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1422047-21-9

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1422047-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1422047-21-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,2,0,4 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1422047-21:
(9*1)+(8*4)+(7*2)+(6*2)+(5*0)+(4*4)+(3*7)+(2*2)+(1*1)=109
109 % 10 = 9
So 1422047-21-9 is a valid CAS Registry Number.

1422047-21-9Downstream Products

1422047-21-9Relevant articles and documents

Arylation, alkenylation, and alkylation of 2-halopyridine N-oxides with Grignard reagents: A solution to the problem of C2/C6 regioselective functionalization of pyridine derivatives

Zhang, Song,Liao, Lian-Yan,Zhang, Fang,Duan, Xin-Fang

, p. 2720 - 2725 (2013/05/08)

A facile arylation, alkenylation, and alkylation of functionalized 2-halopyridine N-oxides with various Grignard reagents was developed. It represented a highly efficient and selective C-H bond functionalization of pyridine derivatives in the presence of reactive C-Cl or C-Br bonds. Using Cl or Br as a blocking group, C2/C6 site-controllable functionalization of pyridine derivatives has been achieved. Various pyridine compounds can be prepared as illustrated in the total syntheses of Onychine, dielsine, and PARP-1 inhibitor GPI 16539.

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