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(1R,5R)-3-Phenyl-1-trimethylsilanyl-3-aza-bicyclo[3.2.1]octane-2,4-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

540490-41-3

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540490-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 540490-41-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,0,4,9 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 540490-41:
(8*5)+(7*4)+(6*0)+(5*4)+(4*9)+(3*0)+(2*4)+(1*1)=133
133 % 10 = 3
So 540490-41-3 is a valid CAS Registry Number.

540490-41-3Upstream product

540490-41-3Relevant academic research and scientific papers

Bridgehead enolates: Substitution and asymmetric desymmetrization of small bridged carbonyl compounds by lithium amide bases

Giblin, Gerard M. P.,Kirk, Douglas T.,Mitchell, Lee,Simpkins, Nigel S.

, p. 1673 - 1675 (2003)

(Matrix presented) Contrary to expectations, a number of bridged carbonyl compounds undergo facile bridgehead metalation with lithium amide bases. Diketone, lactone, lactam, and imide functions are all demonstrated to participate in this type of "bridgehe

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