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227464-44-0

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227464-44-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 227464-44-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,7,4,6 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 227464-44:
(8*2)+(7*2)+(6*7)+(5*4)+(4*6)+(3*4)+(2*4)+(1*4)=140
140 % 10 = 0
So 227464-44-0 is a valid CAS Registry Number.

227464-44-0Relevant articles and documents

A Method for the Catalytic Enantioselective Synthesis of Chiral α-Azido and α-Amino Ketones from Racemic α-Bromo Ketones, and Its Generalization to the Formation of Bonds to C, O, and S

Da Silva Gomes, Roberto,Corey

supporting information, p. 20058 - 20061 (2019/12/27)

A new and practical method has been developed for the transformation of racemic α-bromo ketones to chiral α-azido and α-amino ketones with high enantioselectivity using phase transfer, ion-pair mediated reactions with a recoverable chiral quaternary salt (10 mol %) as catalyst in fluorobenzene-water. The process has been generalized to a variety of other attachments including of C, O, S, and NHR.

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