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817598-79-1

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817598-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 817598-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,7,5,9 and 8 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 817598-79:
(8*8)+(7*1)+(6*7)+(5*5)+(4*9)+(3*8)+(2*7)+(1*9)=221
221 % 10 = 1
So 817598-79-1 is a valid CAS Registry Number.

817598-79-1Relevant articles and documents

Pyrimidine-core extended π-systems: General synthesis and interesting fluorescent properties

Itami, Kenichiro,Yamazaki, Daisuke,Yoshida, Jun-Ichi

, p. 15396 - 15397 (2007/10/03)

We have developed a simple but powerful synthetic strategy that permits the assembly of π-systems onto a pyrimidine core in a programmable and diversity-oriented format. The nucleophilic addition of ArLi to 2-methylthiopyrimidine, followed by 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) oxidation, resulted in the production of 4-aryl-2-methylthiopyrimidines. The iterative reaction sequence then gave 4,6-diaryl-2-methylthiopyrimidines. The resulting adduct was further allowed to react with ArMgBr under the catalytic influence of NiCl2(dppe) to afford 2,4,6-triarylpyrimidines. By following this synthetic scheme, interesting pyrimidine-core π-systems were rapidly constructed in a programmable fashion. The successful discovery of a number of interesting fluorescent materials and properties (e.g., solvatofluorochromism) speaks well for the potential of our platform strategy in the development of functional organic materials. Copyright

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