374559-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 374559-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,7,4,5,5 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 374559-28:
(8*3)+(7*7)+(6*4)+(5*5)+(4*5)+(3*9)+(2*2)+(1*8)=181
181 % 10 = 1
So 374559-28-1 is a valid CAS Registry Number.
374559-28-1Relevant articles and documents
Efficient and flexible access to polysubstituted pyrroles
Agami,Dechoux,Hebbe
, p. 1440 - 1442 (2001)
A series of polysubstituted pyrroles 3 have been synthesized very efficiently in two or three steps starting from primary amines 1. The key-step of this process is the bromocyclisation of δ-enaminoesters 2. The chemoselectivity of the reaction could depend on the nature of the solvent.
