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39070-93-4

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39070-93-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39070-93-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,0,7 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 39070-93:
(7*3)+(6*9)+(5*0)+(4*7)+(3*0)+(2*9)+(1*3)=124
124 % 10 = 4
So 39070-93-4 is a valid CAS Registry Number.

39070-93-4Relevant 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

supporting information, p. 3993 - 3999 (2020/06/08)

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.

Gold-catalyzed cyclo-isomerization of 1,6-diyne-4-en-3-ols to form naphthyl ketone derivatives

Lian, Jian-Jou,Liu, Rai-Shung

, p. 1337 - 1339 (2007/12/27)

We report a new efficient gold-catalyzed cyclization of 1,6-diyne-4-en-3-ols to give naphthyl ketone derivatives under ambient conditions. The value of this cyclization is reflected by its applicability to a wide range of alcohol substrates. The Royal Society of Chemistry.

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