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278167-60-5

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278167-60-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 278167-60-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,8,1,6 and 7 respectively; the second part has 2 digits, 6 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 278167-60:
(8*2)+(7*7)+(6*8)+(5*1)+(4*6)+(3*7)+(2*6)+(1*0)=175
175 % 10 = 5
So 278167-60-5 is a valid CAS Registry Number.

278167-60-5Relevant articles and documents

CuI-Catalyzed Decarboxylative Thiolation of Propargylic Cyclic Carbonates/Carbamates to Access Allenyl Thioethers

Lu, Wen-Ya,You, Yong,Li, Ting-Ting,Wang, Zhen-Hua,Zhao, Jian-Qiang,Yuan, Wei-Cheng

, p. 6711 - 6720 (2021)

The first CuI-catalyzed decarboxylative thiolation of terminal alkyne-substituted cyclic carbonates/carbamates to access allenes has been developed. A wide range of hydroxymethyl-and aminomethyl-containing allenyl thioethers were smoothly obtained in good to excellent yields under mild conditions. The copper-allenylidene intermediate among the process is crucial to the decarboxylative thiolation reaction. This method opens up a new channel to access allenyl thioether compounds.

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