343858-00-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 343858-00-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,3,8,5 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 343858-00:
(8*3)+(7*4)+(6*3)+(5*8)+(4*5)+(3*8)+(2*0)+(1*0)=154
154 % 10 = 4
So 343858-00-4 is a valid CAS Registry Number.
343858-00-4Relevant articles and documents
Dimethylaluminum Chloride Catalyzed Reactions of Methyl α-Cyanoacrylate with Alkenes
Snider, Barry B.,Phillips, Gary B.
, p. 2563 - 2566 (2007/10/02)
The methyl α-cyanoacrylate-Me2AlCl complex reacts with alkenes to give zwitterion 2.Ring closure on carbon gives the cyclobutane 3 with ca. 90percent retention of alkene stereochemistry, ring closure on oxygen gives dihydropyran 5, and a 1,5-hydrogen shif
