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844-14-4

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844-14-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 844-14-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,4 and 4 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 844-14:
(5*8)+(4*4)+(3*4)+(2*1)+(1*4)=74
74 % 10 = 4
So 844-14-4 is a valid CAS Registry Number.

844-14-4Relevant articles and documents

Divergent Synthesis of Highly Substituted Pyridines and Benzenes from Dienals, Alkynes, and Sulfonyl Azides

Luo, Han,Li, You,Du, Luan,Xin, Xiaolan,Wang, Tao,Han, Jingpeng,Tian, Yi,Li, Baosheng

supporting information, p. 7883 - 7887 (2021/10/20)

Divergent synthesis is extremely important for the highly efficient preparation of structurally diverse target molecules. Herein, we describe a multicomponent cascade reaction, which allows access to highly substituted pyridines and benzenes by combining four individual steps in a one-pot manner from the same set of readily available starting materials. The azepine intermediates were first used as the precursors for 6π-electrocyclization to construct highly substituted pyridines and benzenes in a tunable manner.

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