344309-44-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 344309-44-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,4,3,0 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 344309-44:
(8*3)+(7*4)+(6*4)+(5*3)+(4*0)+(3*9)+(2*4)+(1*4)=130
130 % 10 = 0
So 344309-44-0 is a valid CAS Registry Number.
344309-44-0Relevant articles and documents
A Novel Cyclization of 1,2-Bis(2,2-dibromocyclopropyl)benzenes with Methyllithium
Hoehn, Juergen,Weyerstahl, Peter
, p. 808 - 814 (2007/10/02)
The CBr2 bis adducts 7, 8, and 10 react with MeLi at - 78 deg C to give the dicyclopropanaphthalenes 17 - 19.Thus, from meso-7 syn-17, and from d,l-7 anti-17 are formed stereoselectively.The reaction may proceed via the intermediates A or B.The carbenoid
