130028-21-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130028-21-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,0,2 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 130028-21:
(8*1)+(7*3)+(6*0)+(5*0)+(4*2)+(3*8)+(2*2)+(1*1)=66
66 % 10 = 6
So 130028-21-6 is a valid CAS Registry Number.
130028-21-6Relevant articles and documents
A FACILE ONE-STEP SYNTHESIS OF β,γ-UNSATURATED CABOXYLIC ACID ESTERS VIA 1,2-CARBONYL TRANSPOSITIONS OF α,β-UNSATURATED KETONES
Mathew, Felix,Myrboh, B.
, p. 3757 - 3758 (1990)
Reaction of α,β-unsaturated ketone, 1, with lead(IV)acetate and borontrifluoride etherate in the presence of methanol yielded the β,γ-unsaturated esters, 2, in a single step procedure, at room temperature.