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1359843-25-6

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1359843-25-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1359843-25-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,9,8,4 and 3 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1359843-25:
(9*1)+(8*3)+(7*5)+(6*9)+(5*8)+(4*4)+(3*3)+(2*2)+(1*5)=196
196 % 10 = 6
So 1359843-25-6 is a valid CAS Registry Number.

1359843-25-6Downstream Products

1359843-25-6Relevant articles and documents

[5 + 2]Cycloaddition reaction of 2-vinylaziridines and sulfonyl isocyanates. Synthesis of seven-membered cyclic ureas

Kanno, Eri,Yamanoi, Kenichi,Koya, Shunsuke,Azumaya, Isao,Masu, Hyuma,Yamasaki, Ryu,Saito, Shinichi

experimental part, p. 2142 - 2148 (2012/05/20)

The [5 + 2] cycloaddition reaction of 2-vinylaziridines with sulfonyl isocyanates proceeded smoothly under mild conditions, and various cyclic ureas were isolated in high yields. The remarkable solvent effect on the reaction was observed, and the preferential formation of the seven-membered ring occurred when the reaction was carried out in CH2Cl2. The scope and limitation were studied, and the mechanism of this reaction was discussed. This study provides a new and simple method for the synthesis of seven-membered cyclic ureas.

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