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5294-56-4

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5294-56-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5294-56-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,9 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 5294-56:
(6*5)+(5*2)+(4*9)+(3*4)+(2*5)+(1*6)=104
104 % 10 = 4
So 5294-56-4 is a valid CAS Registry Number.

5294-56-4Relevant articles and documents

Asymmetric Hydrogenation of ?-Aryl Alkylidene Malonate Esters: Installing an Ester Group Significantly Increases the Efficiency

Zhao, Qian-Kun,Wu, Xiong,Li, Lin-Ping,Yang, Fan,Xie, Jian-Hua,Zhou, Qi-Lin

supporting information, p. 1675 - 1680 (2021/03/08)

Herein, we report a practical method for efficient asymmetric hydrogenation of β-aryl alkylidene malonates. With a site-specifically tailored chiral spiro iridium catalyst, a series of β-aryl alkylidene malonate esters were hydrogenated to afford chiral m

Diethyl 2-aryl-3-cyanopropene-1,1-dicarboxylates: New versatile precursors in heterocyclic synthesis

Erian, Ayman W.,Araki, Vivian F.,Aziz, Suzan I.,Sherif, Sherif M.

, p. 661 - 669 (2007/10/03)

An expeditious synthetic route for the title precursor is reported. It provides access to a variety of polyfunctionally substituted pyridines, pyridazines, pyrazolopyridines, thiophenes, and thienopyridines.

Specific Features of Reactions of Butyl- and Phenylacetylenes with CH-Acids

Badanyan,Chobanyan,Tirakyan,Danielyan

, p. 17 - 20 (2007/10/03)

The reactions of butyl- and phenylacetylenes with cyanoacetic, malonic, and acetoacetic esters and acetylacetone in a polar solvent in the presence of mercuric acetate were studied. Intramolecular cyclization of unsaturated dicarbonyl compounds formed at

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