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52797-72-5

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52797-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 52797-72-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,7,9 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 52797-72:
(7*5)+(6*2)+(5*7)+(4*9)+(3*7)+(2*7)+(1*2)=155
155 % 10 = 5
So 52797-72-5 is a valid CAS Registry Number.

52797-72-5Downstream Products

52797-72-5Relevant articles and documents

Synthesis of new thioxanthenes by organocatalytic intramolecular Friedel–Crafts reaction

Yildiz, Tülay

, p. 2177 - 2188 (2018/07/21)

An efficient organocatalytic route has been developed to synthesize novel substituted thioxanthenes (2a–2v) starting from diaryl thioether alcohols (1a–1v) using the intramolecular Friedel–Crafts reaction. The starting materials were obtained in two stage

A classical but new kinetic equation for hydride transfer reactions

Zhu, Xiao-Qing,Deng, Fei-Huang,Yang, Jin-Dong,Li, Xiu-Tao,Chen, Qiang,Lei, Nan-Ping,Meng, Fan-Kun,Zhao, Xiao-Peng,Han, Su-Hui,Hao, Er-Jun,Mu, Yuan-Yuan

, p. 6071 - 6089 (2013/09/12)

A classical but new kinetic equation to estimate activation energies of various hydride transfer reactions was developed according to transition state theory using the Morse-type free energy curves of hydride donors to release a hydride anion and hydride acceptors to capture a hydride anion and by which the activation energies of 187 typical hydride self-exchange reactions and more than thirty thousand hydride cross transfer reactions in acetonitrile were safely estimated in this work. Since the development of the kinetic equation is only on the basis of the related chemical bond changes of the hydride transfer reactants, the kinetic equation should be also suitable for proton transfer reactions, hydrogen atom transfer reactions and all the other chemical reactions involved with breaking and formation of chemical bonds. One of the most important contributions of this work is to have achieved the perfect unity of the kinetic equation and thermodynamic equation for hydride transfer reactions. The Royal Society of Chemistry.

Reactivities of 9 phenylxanthylium and 9 phenylthioxanthylium salts in electrophilic and nucleophilic reactions. I. Nitration

Hori,Kataoka,Ohno,Toyoda

, p. 1272 - 1281 (2007/10/08)

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