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446246-12-4

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446246-12-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 446246-12-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,6,2,4 and 6 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 446246-12:
(8*4)+(7*4)+(6*6)+(5*2)+(4*4)+(3*6)+(2*1)+(1*2)=144
144 % 10 = 4
So 446246-12-4 is a valid CAS Registry Number.

446246-12-4Relevant articles and documents

Lithiated camphor-derived oxazolidinone S,N-acetals as chiral formyl anion synthons in additions to aldehydes. Asymmetric synthesis of α-hydroxy aldehydes and α-hydroxy acids

Gawley, Robert E.,Campagna, Silvio A.,Santiago, Marcelina,Ren, Tong

, p. 29 - 36 (2007/10/03)

N-(Phenylthiomethyl)oxazolidinones derived from camphor can be lithiated and added to aldehydes in good yields and stereoselectivities. The adducts are crystalline, which simplifies isolation of the major diastereomer from the product mixture. Hydrolysis affords enantiopure α-hydroxy aldehydes, which can be oxidized to α-hydroxy acids in good yields. The steric course of the reaction is analyzed in detail and a mechanistic model is presented.

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