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491837-37-7

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491837-37-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 491837-37-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,1,8,3 and 7 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 491837-37:
(8*4)+(7*9)+(6*1)+(5*8)+(4*3)+(3*7)+(2*3)+(1*7)=187
187 % 10 = 7
So 491837-37-7 is a valid CAS Registry Number.

491837-37-7Relevant articles and documents

A facile synthetic route to (+)-allosedamine via hydrolytic kinetic resolution and olefin metathesis

Kang, Byungman,Chang, Sukbok

, p. 7353 - 7359 (2007/10/03)

A concise synthesis of (+)-allosedamine has been achieved using cobalt-catalyzed hydrolytic kinetic resolution (HKR) and ruthenium-catalyzed ring closing metathesis (RCM) as two key steps, in which HKR was used to introduce both stereogenic centers in the natural compound with a high degree of diastereomeric ratio and cyclization was carried out with the well developed RCM procedure.

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