129274-24-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 129274-24-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,9,2,7 and 4 respectively; the second part has 2 digits, 2 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 129274-24:
(8*1)+(7*2)+(6*9)+(5*2)+(4*7)+(3*4)+(2*2)+(1*4)=134
134 % 10 = 4
So 129274-24-4 is a valid CAS Registry Number.
129274-24-4Relevant articles and documents
ASYMMETRIC ALDOL REACTIONS USING BORON ENOLATES OF CHIRAL OXAZINONES, SYNTHESIS OF L-ALLO-THREONINE
Reno, Daniel S.,Lotz, Bruce T.,Miller, Marvin J.
, p. 827 - 830 (1990)
The boron enolate of oxazinone 1 was allowed to react with acetaldehyde, butanal, and 2-methylpropanal.The reaction proceeded stereoselectively, and in the reaction with acetaldehyde, the reaction afforded a precursor to L-allo-threonine.