56640-47-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56640-47-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,6,4 and 0 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56640-47:
(7*5)+(6*6)+(5*6)+(4*4)+(3*0)+(2*4)+(1*7)=132
132 % 10 = 2
So 56640-47-2 is a valid CAS Registry Number.
56640-47-2Relevant articles and documents
Kumada - Corriu coupling of Grignard reagents, probed with a chiral Grignard reagent
Hoelzer, Bettina,Hoffmann, Reinhard W.
, p. 732 - 733 (2003)
The Grignard reagent 2, in which the magnesium-bearing carbon atom is the sole stereogenic centre has been coupled with vinyl bromide under Pd(0) or Ni(0)-catalysis to give compound 3 with full retention of configuration. Coupling using Fe(acac)3/su