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85678-39-3

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85678-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85678-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,6,7 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 85678-39:
(7*8)+(6*5)+(5*6)+(4*7)+(3*8)+(2*3)+(1*9)=183
183 % 10 = 3
So 85678-39-3 is a valid CAS Registry Number.

85678-39-3Relevant articles and documents

Syntheses of trifluoroethylated unsymmetrical 1,3-diynes by using 1,1-dichloro-2,2,2-trifluoroethane

Zheng, Jian,Chen, Qing-Yun,Sun, Ke,Huang, Yangen,Guo, Yong

supporting information, p. 5757 - 5760 (2016/12/06)

Copper-mediated reaction of terminal 1,3-diynes with 1,1-dichloro-2,2,2-trifluoroethane (CF3CHCl2) using ethanolamine as ligand gave trifluoroethylated unsymmetrical 1,3-diynes in moderate to good yields. The reaction were carried out under mild conditions, and were easy to operate. Aryl groups with weak electron-withdrawing group or electron-donating group, and alkyl substitutents at terminal 1,3-diynes were tolerated. Synthesis of a trifluoroethylated conjugated triyne by using this method was demonstrated. Further transformation of the trifluoroethylated unsymmetrical 1,3-diyne to provide trifluoroethyl-substituted 1,2,3-triazole and isoxazole as application examples were successfully realized.

A Convenient Synthesis of 1-Trimethylsilyl-1,3-diynes and their Conversion into Terminal 1,3-Diynes

Miller, Joseph A.,Zweifel, George

, p. 128 - 130 (2007/10/02)

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