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103979-40-4

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103979-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103979-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,9,7 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 103979-40:
(8*1)+(7*0)+(6*3)+(5*9)+(4*7)+(3*9)+(2*4)+(1*0)=134
134 % 10 = 4
So 103979-40-4 is a valid CAS Registry Number.

103979-40-4Relevant academic research and scientific papers

Bis(phenylsulfonyl)methane mediated synthesis of olefins: Via a halogen elimination and double bond migration

Hu, Yanwei,Jiang, Jing,Hu, Ying,Cai, Xin,Wang, Liudi,Chen, Shaohua,Zhang, Shilei,Zhang, Yinan

, p. 2619 - 2622 (2018/04/27)

An effective dehydrochlorination of bis(phenylsulfonyl)alkane to prepare alkene building blocks is developed. The elimination together with double bond migration results in a variety of β,γ-unsaturated bis(phenylsulfonyl)olefins in good yields with only E geometry. The following chemical diversification represents an easy and straightforward access to a series of alkene building blocks.

Elimination and Addition Reactions. Part 40. The Insignificant Effect of Strain in Higher Order Eliminations in 1,1-bis(phenylsulphonyl) Carbanions with ω-Leaving Groups

Benedetti, Fabio,Stirling, Charles J.M.

, p. 605 - 612 (2007/10/02)

Rates of cyclisation of 1,1-bis(phenylsulphonyl) carbanions bearing distal leaving groups have been determined.The response of the system to solvent effects and to leaving group is similar to that in intramolecular nucleophilic substitution.The system is

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