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5517-61-3

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5517-61-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5517-61-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,1 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 5517-61:
(6*5)+(5*5)+(4*1)+(3*7)+(2*6)+(1*1)=93
93 % 10 = 3
So 5517-61-3 is a valid CAS Registry Number.

5517-61-3Relevant articles and documents

Site-Selective and Stereoselective C-H Alkylations of Carbohydrates via Combined Diarylborinic Acid and Photoredox Catalysis

Dimakos, Victoria,Su, Hsin Y.,Garrett, Graham E.,Taylor, Mark S.

, p. 5149 - 5153 (2019)

Diphenylborinic acid serves as a cocatalyst for site- and stereoselective C-H alkylation reactions of carbohydrates under photoredox conditions using quinuclidine as the hydrogen atom transfer mediator. Products arising from selective abstraction of the equatorial hydrogens of cis-1,2-diol moieties, followed by C-C bond formation with net retention of configuration, are obtained. Computational modeling supports a mechanism involving formation of a tetracoordinate borinic ester, which accelerates hydrogen atom transfer with the quinuclidine-derived radical cation through polarity-matching and/or ion-pairing effects.

REGIOSELECTIVE O-DEACYLATION OF FULLY ACYLATED GLYCOSIDES AND 1,2-O-ISOPORPYLIDENEALDOFURANOSE DERIVATIVES WITH HYDRAZINE HYDRATE

Ishido, Yoshiharu,Sakairi, Nobuo,Sekiya, Masao,Nakazaki, Nobuo

, p. 51 - 80 (2007/10/02)

On hydrazinolyis in 1:4 acetic acid-pyridine, and in pyridine, partisl O-deacylation of fully acylated methyl glycosides and some other glycosyl compounds ( 23 compounds ) was found to be induced, to give, in good yields, products bearing one free hydroxy

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