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468061-03-2

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468061-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 468061-03-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,6,8,0,6 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 468061-03:
(8*4)+(7*6)+(6*8)+(5*0)+(4*6)+(3*1)+(2*0)+(1*3)=152
152 % 10 = 2
So 468061-03-2 is a valid CAS Registry Number.

468061-03-2Relevant articles and documents

The stereochemical course of addition of allyltrimethylsilane to protected L-alaninals and L-serinals in the presence of Lewis acids. Total synthesis of cis-(2R,3S)-3-hydroxyproline

Gryko,Prokopowicz,Jurczak

, p. 1103 - 1113 (2007/10/03)

The influence of Lewis acids on the diastereoselectivity of the addition of allyltrimethylsilane to variously protected L-alaninals and L-serinals was investigated and high levels of asymmetric induction were achieved. Stereochemical models for rationalisation of the results obtained are proposed. cis-(2R,3S)-3-Hydroxyproline was synthesised starting from N-Cbz, O-TBS-L-serinal, in which the crucial step involves addition of allyltrimethylsilane to the aldehyde in the presence of SnCl4.

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