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1283073-99-3

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1283073-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1283073-99-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,3,0,7 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1283073-99:
(9*1)+(8*2)+(7*8)+(6*3)+(5*0)+(4*7)+(3*3)+(2*9)+(1*9)=163
163 % 10 = 3
So 1283073-99-3 is a valid CAS Registry Number.

1283073-99-3Downstream Products

1283073-99-3Relevant articles and documents

Synthesis of N-(2-pyridyl)indoles via Pd(II)-catalyzed oxidative coupling

Chen, Jinlei,Pang, Qingyu,Sun, Yanbo,Li, Xingwei

supporting information; experimental part, p. 3523 - 3526 (2011/06/24)

Readily available Pd(II) chloride catalysts can catalyze selective and efficient oxidative coupling between N-aryl-2-aminopyridines and internal alkynes to yield N-(2-pyridyl)indoles. This process involves the ortho C-H activation of N-aryl-2-aminopyridines, and CuCl2 was used as an oxidant. Compared to our previously reported Rh(III)-catalyzed synthesis of this class of product, this method is advantageous with a wider scope of alkynes and cost-effective Pd(II) catalysts. Molecular oxygen can be used as a terminal oxidant.

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