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51317-82-9

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51317-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 51317-82-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,3,1 and 7 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 51317-82:
(7*5)+(6*1)+(5*3)+(4*1)+(3*7)+(2*8)+(1*2)=99
99 % 10 = 9
So 51317-82-9 is a valid CAS Registry Number.

51317-82-9Relevant articles and documents

Phosphine-Catalyzed Cascade Annulation of MBH Carbonates and Diazenes: Synthesis of Hexahydrocyclopenta[c]pyrazole Derivatives

Guo, Hongchao,Li, Hongxiang,Liu, Hao,Shi, Wangyu,Wang, Chang,Wang, Wei,Wu, Yongjun

supporting information, p. 5571 - 5575 (2021/07/31)

A phosphine-catalyzed cascade annulation of Morita-Baylis-Hillman (MBH) carbonates and diazenes was achieved, giving tetrahydropyrazole-fused heterocycles bearing two five-membered rings in moderate to excellent yields. The reaction underwent an unprecedented reaction mode of MBH carbonates, in which two molecules of MBH carbonates were fully merged into the ring system.

Phosphine-Catalyzed Asymmetric Cycloaddition Reaction of Diazenes: Enantioselective Synthesis of Chiral Dihydropyrazoles

Wang, Chang,Chen, Yuehua,Li, Jingyu,Zhou, Leijie,Wang, Bo,Xiao, Yumei,Guo, Hongchao

supporting information, p. 7519 - 7523 (2019/10/02)

Although carbon-carbon, carbon-nitrogen, and carbon-oxygen double bonds or their combinations have extensively been applied in phosphine-catalyzed asymmetric cycloaddition, a nitrogen-nitrogen double bond has never been investigated in chiral phosphine ca

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