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636580-94-4

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636580-94-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 636580-94-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,6,5,8 and 0 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 636580-94:
(8*6)+(7*3)+(6*6)+(5*5)+(4*8)+(3*0)+(2*9)+(1*4)=184
184 % 10 = 4
So 636580-94-4 is a valid CAS Registry Number.

636580-94-4Relevant articles and documents

Oxidative functionalisation of superquat enamides: Asymmetric synthesis of homochiral 1,2 diols

Davies, Stephen G.,Key, Min-Suk,Rodriguez-Solla, Humberto,Sanganee, Hitesh J.,Savory, Edward D.,Smith, Andrew D.

, p. 1659 - 1662 (2003)

Homochiral (E)-enamides derived from (S)-4-phenyl-5,5-dimethyl-oxazolidin-2-one undergo highly diastereoselective epoxidation upon treatment with dimethyldioxirane (DMDO). Treatment with m-chloroperbenzoic acid (MCPBA) produces syn-(4S, 1′R,2′)-1′ -acyloxy-2′-hydroxy derivatives with high diastereoselectivity, consistent with a mechanism involving initial epoxidation and subsequent in situ SN1 type epoxide opening and trapping with m-chlorobenzoic acid. Reductive cleavage of the isolated 1′-acyloxy-2′-hydroxy derivatives generates 1,2-diols in high yields and in high ee.

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