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74188-48-0

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74188-48-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74188-48-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,1,8 and 8 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 74188-48:
(7*7)+(6*4)+(5*1)+(4*8)+(3*8)+(2*4)+(1*8)=150
150 % 10 = 0
So 74188-48-0 is a valid CAS Registry Number.

74188-48-0Downstream Products

74188-48-0Relevant articles and documents

SYNTHESIS OF PERFLUOROBICYCLIC ETHERS . THE ELECTROCHEMICAL FLUORINATION OF α-CYCLOHEXENYL-SUBSTITUTED CARBOXYLIC ACID DERIVATIVES

Abe, Takashi,Hayashi, Eiji,Baba, Hajime,Nagase, Shunji

, p. 419 - 434 (1984)

The electrochemical fluorination of α-cyclohexenyl-substituted carboxylic esters afforded both perfluoro (9-alkyl-7-oxa-bicyclononane)s and perfluoro(8-alkoxy-9-alkyl-7-oxabicyclononane)s in fairly good yields.As the driving force for the ring-closure in this fluorination, a mechanism which involves a resonance stabilized intermediate radical is proposed. Perfluoro(8-chloro-8-methoxy-9-ethyl-7-oxabicyclononane) and perfluoro(8,8-dichloro-9-ethyl-7-oxabicyclononane) were obtained by the controlled chlorination of perfluoro(8-methoxy-9-ethyl-7-oxabicyclo nonane) with anhydrous aluminum chloride in low yields.Some new fused perfluorobicyclic ethers and a perfluoroacid fluoride obtained in this experiment have been characterized by infrared, mass and 19F nmr spectra and elemental analysis.

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