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756491-45-9

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756491-45-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 756491-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,5,6,4,9 and 1 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 756491-45:
(8*7)+(7*5)+(6*6)+(5*4)+(4*9)+(3*1)+(2*4)+(1*5)=199
199 % 10 = 9
So 756491-45-9 is a valid CAS Registry Number.

756491-45-9Relevant articles and documents

Photocatalyzed E→Z Contra-thermodynamic Isomerization of Vinyl Boronates with Binaphthol

Brégent, Thibaud,Bouillon, Jean-Philippe,Poisson, Thomas

, p. 13966 - 13970 (2021/08/25)

The photocatalytic contra-thermodynamic E→Z isomerization of vinyl boronates by using a binaphthol catalyst is disclosed. The reaction, based on the transient formation of a suitable chromophore with a BINOL derivative as the catalyst, allowed geometrical isomerization in good-to-excellent Z/E ratio and excellent-to-quantitative yields. The mechanism of this E→Z contra-thermodynamic isomerization was studied, and the formation of a transient chromophore species is suggested.

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