83711-25-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83711-25-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,1 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83711-25:
(7*8)+(6*3)+(5*7)+(4*1)+(3*1)+(2*2)+(1*5)=125
125 % 10 = 5
So 83711-25-5 is a valid CAS Registry Number.
83711-25-5Relevant academic research and scientific papers
Tandem Cope-Claisen Rearrangement: Scope and Stereochemistry
Ziegler, Frederick E.,Piwinski, John J.
, p. 7181 - 7190 (2007/10/02)
The complete details of the seminal study on the tandem Cope-Claisen rearrangement are presented.The reaction uses an initial Cope rearrangement to trigger an irreversible Claisen rearrangement.In several cases, the Claisen step drives an unfavorable Cope
