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73408-31-8

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73408-31-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73408-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,4,0 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73408-31:
(7*7)+(6*3)+(5*4)+(4*0)+(3*8)+(2*3)+(1*1)=118
118 % 10 = 8
So 73408-31-8 is a valid CAS Registry Number.

73408-31-8Downstream Products

73408-31-8Relevant articles and documents

Catalytic c-c cleavage/alkyne-carbonyl metathesis sequence of cyclobutanones

Gao, Jiqiang,Liu, Chunhui,Li, Zhongjuan,Liang, Haotian,Ao, Yuhui,Zhao, Jinbo,Wang, Yuchao,Wu, Yuanqi,Liu, Yu

, p. 3993 - 3999 (2020)

A ring-opening/alkyne-carbonyl metathesis sequence of alkyne-tethered cyclobutanones catalyzed by AgSbF6 is realized for the first time to furnish multisubstituted naphthyl ketones under mild conditions. A range of substrates decorated with various substituents at different positions were all well accommodated. Preliminary mechanistic studies show that silver salt acted as a Lewis acid to facilitate both C-C cleavage of the cyclobutanone moiety and the subsequent metathesis between C═O and CC bonds.

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