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1099822-31-7

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1099822-31-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1099822-31-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,9,9,8,2 and 2 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1099822-31:
(9*1)+(8*0)+(7*9)+(6*9)+(5*8)+(4*2)+(3*2)+(2*3)+(1*1)=187
187 % 10 = 7
So 1099822-31-7 is a valid CAS Registry Number.

1099822-31-7Relevant articles and documents

Highly diastereoselective Barbier allylation and iminium cyclization: a simple entry to bicyclic and tricyclic piperazinones

Viso,Fernández de la Pradilla,Flores,del águila

, p. 11580 - 11588 (2008)

Barbier allylation of 5,6-dihydropyrazin-2(1H)-ones leads to a single isomer of 3-allylpiperazin-2-ones in high yields. Further Pictet-Spengler-Grieco cyclization of 3-allylpiperazin-2-ones with aldehydes provides bicyclic and tricyclic piperazinones with

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