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74879-49-5

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74879-49-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74879-49-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,8,7 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74879-49:
(7*7)+(6*4)+(5*8)+(4*7)+(3*9)+(2*4)+(1*9)=185
185 % 10 = 5
So 74879-49-5 is a valid CAS Registry Number.

74879-49-5Relevant articles and documents

Study of the Reactivity of [Hydroxy(tosyloxy)iodo]benzene Toward Enol Esters to Access α-Tosyloxy Ketones

Basdevant, Benoit,Legault, Claude Y.

, p. 6897 - 6902 (2015/10/06)

The reactivity of enol esters toward [hydroxy(tosyloxy)iodo]benzene (HTIB) was assessed. These substrates were found to be rapidly converted in high yields to their corresponding α-tosyloxy ketones. This transformation demonstrates that these substrates can act as ketone surrogates. The scope of the method was investigated and aromatic, aliphatic, and cyclic enol esters were found to be suitable substrates for the reaction. The relative reactivity of a model substrate toward HTIB and m-CPBA was investigated, and it was found that the reaction could be performed under catalytic conditions.

REACTION OF TRIALKYLBORANE WITH 1-ALKYNE AND LEAD(IV) ACETATE, A NEW REGIOSPECIFIC AND STEREOSPECIFIC ONE-POT SYNTHESIS OF ENOL ACETATES

Masuda, Yuzuru,Hoshi, Masayuki,Arase, Akira

, p. 413 - 416 (2007/10/02)

In the reaction of trialkylborane with 1-alkyne and lead(IV) acetate in hexane, one of the alkyl groups of trialkylborane migrated to the terminal carbon atom of the triple bond, giving regiospecifically an internal enol acetate and an internal alkyne as the main reaction products.The former compound had (Z)-configuration.

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