89617-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89617-52-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,6,1 and 7 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89617-52:
(7*8)+(6*9)+(5*6)+(4*1)+(3*7)+(2*5)+(1*2)=177
177 % 10 = 7
So 89617-52-7 is a valid CAS Registry Number.
89617-52-7Relevant academic research and scientific papers
Stereoselective synthesis of β-lactams by condensation of titanium enolates of 2-pyridylthioesters with imines bearing a chiral auxiliary
Annunziata,Benaglia,Cinquini,Cozzi,Raimondi
, p. 6921 - 6924 (2007/10/02)
Addition of the titanium enolates of 2-pyridylthioesters to imines featuring easily removable chiral auxiliaries affords β-lactams in a highly stereoselective fashion.
