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1293914-22-3

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1293914-22-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1293914-22-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,3,9,1 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1293914-22:
(9*1)+(8*2)+(7*9)+(6*3)+(5*9)+(4*1)+(3*4)+(2*2)+(1*2)=173
173 % 10 = 3
So 1293914-22-3 is a valid CAS Registry Number.

1293914-22-3Downstream Products

1293914-22-3Relevant articles and documents

5-Carboxymethyl-2-(4-methylthiophenyl)-1,3,2-dioxaborolan-4-one: Synthesis, characterization and application in enantioselective reduction of ketones

Gorska, Agnieszka,Hajmowicz, Halina,Klis, Tomasz,Serwatowski, Janusz,Synoradzki, Ludwik

scheme or table, p. 294 - 297 (2012/01/02)

The reaction of arylboronic acids with L-O-benzoyl-tartaric acid and D,L-malic acid has been studied. The obtained (acyloxy)boranes are moderately stable in solution and decompose to give boroxines. 5-Carboxymethyl-2-(4- methylthiophenyl)-1,3,2-dioxaborolan-4-one was obtained in the reaction of 4-methylthiophenylboronic acid with D,L-malic acid and characterized by X-ray structural analysis. The use of L-(-)-malic acid afforded the optically pure product which can be used as the powerful chiral reagent in the enantioselective reduction of ketones.

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