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115237-40-6

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115237-40-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 115237-40-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,5,2,3 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 115237-40:
(8*1)+(7*1)+(6*5)+(5*2)+(4*3)+(3*7)+(2*4)+(1*0)=96
96 % 10 = 6
So 115237-40-6 is a valid CAS Registry Number.

115237-40-6Downstream Products

115237-40-6Relevant articles and documents

Substituted 4H-1-Benzopyran-4-ones (Chromones): Synthesis via Palladium-catalysed Coupling of their Halogeno Derivatives with Alkenes

Davies, Stephen G.,Mobbs, Bryan E.,Goodwin, Christopher J.

, p. 2597 - 2604 (1987)

Activation of bromochromones has been achieved by Pd0 insertion into the carbon-halogen bond.The resultant species undergo coupling with alkenes leading to vinylated chromones.Vinylation occurs regiospecifically at the original site of bromination and therefore provides a method for the clean introduction of substituents into the chromone ring system.An anomalous reaction of a dibrominated chromone leading to a ring-opened product is described.

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