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191218-48-1

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191218-48-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191218-48-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,2,1 and 8 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191218-48:
(8*1)+(7*9)+(6*1)+(5*2)+(4*1)+(3*8)+(2*4)+(1*8)=131
131 % 10 = 1
So 191218-48-1 is a valid CAS Registry Number.

191218-48-1Downstream Products

191218-48-1Relevant articles and documents

Method for synthesizing pyrimidinone compound under participation of CO2

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Paragraph 0043; 0048-0052; 0057, (2020/03/05)

The invention provides a method for synthesizing a pyrimidinone compound under the participation of CO2, the structural formula of the pyrimidinone compound is shown as a formula (I), and a reaction substrate is shown as a formula (II); wherein R1, R2 and

Silver-catalyzed highly efficient synthesis of pyrido[1,2-a]pyrimidin-4-ones from 2-aminopyridines and alkynoates

Chen, Zhengwang,Wen, Yuelu,Ding, Hao,Luo, Guotian,Ye, Min,Liu, Liangxian,Xue, Jun

supporting information, p. 13 - 16 (2016/12/23)

Pyrimidinone is one of the important nitrogen containing heterocycles due to their wide range of bioactivities. An efficient silver-catalyzed intermolecular cyclization of 2-aminopyridines with various alkynoates has been developed. 2-Substituted 4H-pyrido[1,2-a]pyrimidin-4-ones containing a wide range of functional groups are synthesized in the standard conditions. This transformation is conducted under convenient conditions and affords products in good yields.

Synthesis of 2-Arylpyridopyrimidinones, 6-Aryluracils, and Tri- and Tetrasubstituted Conjugated Alkenes via Pd-Catalyzed Enolic C-O Bond Activation-Arylation

Guchhait, Sankar K.,Priyadarshani, Garima

, p. 6342 - 6349 (2015/06/30)

A new and efficient approach for the synthesis of biologically important 2-aryl-4H-pyrido[1,2-a]pyrimidin-4-ones and 6-aryluracils via previously unknown Pd-catalyzed enolic C-OH activation-arylation of pyridopyrimidin-2,4-diones and barbituric acids, res

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