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39568-38-2

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39568-38-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39568-38-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,5,6 and 8 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 39568-38:
(7*3)+(6*9)+(5*5)+(4*6)+(3*8)+(2*3)+(1*8)=162
162 % 10 = 2
So 39568-38-2 is a valid CAS Registry Number.

39568-38-2Relevant articles and documents

Ring Transformation of Isoxazoles into Furan and Pyran Derivatives

Ciller, Juan A.,Martin, Nazario,Seoane, Carlos,Soto, Jose L.

, p. 2581 - 2584 (2007/10/02)

A ring transformation of isoxazole into 3,5-dicyano-4H-pyran-2-amines (4) and N-arylidenefuran-2-amines (7) is reported.It involves a ring opening of the isoxazole ring in the presence of an aromatic aldehyde, leading to 2-arylidene-3-oxopropanenitrile (2), followed by nucleophilic attack by either cyanide or propanedinitrile and then heterocyclization.The reaction can also be applied to 5-substituted isoxazoles.

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