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1256262-90-4

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1256262-90-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1256262-90-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,6,2,6 and 2 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1256262-90:
(9*1)+(8*2)+(7*5)+(6*6)+(5*2)+(4*6)+(3*2)+(2*9)+(1*0)=154
154 % 10 = 4
So 1256262-90-4 is a valid CAS Registry Number.

1256262-90-4Relevant articles and documents

Synthesis of Oxatricyclooctanes via Photoinduced Intramolecular Oxa-[4+2] Cycloaddition of Substituted o-Divinylbenzenes

Liu, Qiang,Wang, Junlei,Li, Dazhi,Gao, Guo-Lin,Yang, Chao,Gao, Yuan,Xia, Wujiong

, p. 7856 - 7868 (2017/08/14)

The photolysis of substituted o-divinylbenzenes promotes a one-step and metal-free conversion to oxatricycles at room temperature. Irradiation o-divinylbenzenes results in an pericyclic reaction to form cyclic o-quinodiemthane intermediates, which subsequently undergo intramolecular oxa-[4+2] cycloaddition to form oxacyclic derivatives.

Synthesis of nonsymmetric divinylarenes by a heck/wittig reaction combination

Burmester, Christian,Mataka, Shuntaro,Thiemann, Thies

experimental part, p. 3196 - 3208 (2010/12/24)

A protocol for a one-pot Heck reaction/Wittig olefination to divinylarenes has been developed. Copyright Taylor & Francis Group, LLC.

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