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3,4-dihydro-3-phenyl-4-(phenylseleno)-1H-2-benzopyran-1-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

155694-65-8

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155694-65-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155694-65-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,6,9 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 155694-65:
(8*1)+(7*5)+(6*5)+(5*6)+(4*9)+(3*4)+(2*6)+(1*5)=168
168 % 10 = 8
So 155694-65-8 is a valid CAS Registry Number.

155694-65-8Relevant academic research and scientific papers

Cyclofunctionalisation of unsaturated acids with benzeneselenenyl chloride. Kinetic and thermodynamic aspects of the rules for ring closure

Clive, Derrick L.J.,Russell, Charles G.,Chittattu, Gim,Singh, Alok

, p. 1399 - 1408 (2007/10/02)

Experimental procedures are described for the synthetically useful reaction by which olefinic acids are converted into lactones carrying a benzeneseleno-group. Data are presented to define some of the mechanistic details of this type of cyclofunctionalisation and kinetic and thermodynamic factors relevant to the Rules for Ring Closure are discussed. A nomenclature is introduced for a treatment of ring-fusion stereochemistry.

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