123420-22-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123420-22-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,2 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 123420-22:
(8*1)+(7*2)+(6*3)+(5*4)+(4*2)+(3*0)+(2*2)+(1*2)=74
74 % 10 = 4
So 123420-22-4 is a valid CAS Registry Number.
123420-22-4Relevant articles and documents
"Umpolung" Using a Phosphorus Group. A Novel Method for the Chemoselective Synthesis of 2-Acetonyl or 3-Acetonyl Morpholines
Cristau, H. J.,Fonte, M.,Torreilles, E.
, p. 301 - 303 (1989)
The substituted vinyltriphenylphosphonium salt 1 is shown to undergo chemoselective a4 addition with 2-aminoethanols 2 and 3 followed by intramolecular a4,a3-cyclization to give novel functionalized morpholines.
