142074-92-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142074-92-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,0,7 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 142074-92:
(8*1)+(7*4)+(6*2)+(5*0)+(4*7)+(3*4)+(2*9)+(1*2)=108
108 % 10 = 8
So 142074-92-8 is a valid CAS Registry Number.
142074-92-8Relevant articles and documents
Highly regio- and enantioselective heck reactions of N-substituted 2-pyrroline with the new chiral ligand BITIANP
Tietze,Thede
, p. 1470 - 1472 (2007/10/03)
The intermolecular Heck reaction of N-substituted 2-pyrroline 4 with aryl triflates 5a-d in the presence of the chiral ligand (S)-BITIANP 1 gives the N-substituted 5-aryl-2-pyrrolines 6a-d highly regioselectively with excellent enantioselectivity (93-95%
