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1201921-94-9

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1201921-94-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1201921-94-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,0,1,9,2 and 1 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1201921-94:
(9*1)+(8*2)+(7*0)+(6*1)+(5*9)+(4*2)+(3*1)+(2*9)+(1*4)=109
109 % 10 = 9
So 1201921-94-9 is a valid CAS Registry Number.

1201921-94-9Relevant articles and documents

Acylation of 2-benzylpyridine N-oxides and subsequent in situ [3,3]-sigamatropic rearrangement reaction

Antilla, Jon C.,Jing, Hua-qing,Li, Hong-liang

, (2020/09/22)

An effective method for the acylation of 2-benzylpyridine N-oxides and their fast in situ [3,3]-sigmatropic rearrangement was reported. This transformation has a wide substrate scope under mild conditions, giving moderate to excellent yields. The application for the synthesis of chiral phenyl-2-pyridylmethanol products was briefly explored. Furthermore, an interesting example of tandem substitution and in situ [3,3]-sigamatropic rearrangement of 2-benzylpyridine N-oxide with benzenecarboximidoyl chloride was reported.

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