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630129-08-7

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630129-08-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 630129-08-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,0,1,2 and 9 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 630129-08:
(8*6)+(7*3)+(6*0)+(5*1)+(4*2)+(3*9)+(2*0)+(1*8)=117
117 % 10 = 7
So 630129-08-7 is a valid CAS Registry Number.

630129-08-7Relevant articles and documents

Stereochemistry of intramolecular Diels-Alder furan (IMDAF) reactions of furyl-substituted chiral ethanolamides

Tromp, Reynier A.,Brussee, Johannes,Van der Gen, Arne

, p. 3592 - 3599 (2007/10/03)

This paper describes the stereoselective outcome of the intramolecular Diels-Alder furan (IMDAF) reaction of substituted (2S,3S)-ethanolamides 9-13, which were synthesised from a furyl substituted cyanohydrin. The latter was obtained from 2-furaldehyde with high enantioselectivity by an oxynitrilase catalysed addition of hydrogen cyanide. The stereochemistry of the IMDAF products was shown to be dependent on the size of the ethanolamide substituents R. Small substituents (H, Me, CN) gave exclusively axo-cycloaddition, whereas more bulky ones (Ph, Et) gave both exo- and endo-addition, the larger phenyl substituent giving a high endo-exo-ratio.

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