40435-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 40435-57-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,3 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 40435-57:
(7*4)+(6*0)+(5*4)+(4*3)+(3*5)+(2*5)+(1*7)=92
92 % 10 = 2
So 40435-57-2 is a valid CAS Registry Number.
40435-57-2Relevant articles and documents
The reaction of β-ketoacids with allylboronates
Kabalka,Yang,Wang
, p. 511 - 517 (2007/10/03)
Allylboronates react with β-ketoacids to yield tertiary homoallylic β-hydroxycarboxylic acids. The reaction presumably proceeds via a bicyclic transition state. The β-carboxylic substituent enhances the rate of the reaction.