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75456-42-7

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75456-42-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75456-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,4,5 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 75456-42:
(7*7)+(6*5)+(5*4)+(4*5)+(3*6)+(2*4)+(1*2)=147
147 % 10 = 7
So 75456-42-7 is a valid CAS Registry Number.

75456-42-7Downstream Products

75456-42-7Relevant articles and documents

Ring-Closure Reactions Initiated by the Peroxydisulfate Ion Oxidation of Diphenyl Diselenide

Tiecco, M.,Testaferri, L.,Tingoli, M.,Bartoli, D.,Balducci, R.

, p. 429 - 434 (2007/10/02)

The oxidation of diphenyl diselenide with ammonium peroxydisulfate proceeded cleanly to afford phenylselenium cations and sulfate anions.This is a very simple and efficient method to produce phenylselenium cations in the absence of nucleophilic counterions.This reaction was employed to effect selenium-induced ring closure reactions starting from alkenes containing internal nucleophiles.Thus, unsaturated alcohols and amides, β-diketones and β-keto esters gave the products of phenylselenoetherification.The same process occurred with dienes and unsaturated ketones when the reaction was carried out in the presence of water or methanol, respectively.Unsaturated acids, esters, and imides afforded the phenylselenolactonization products.

PHENYLSELENENYL CHLORIDE AS A REAGENT FOR THE FACILE PREPARATION OF CYCLIC ETHERS FROM DIOLEFINS

Uemura, Sakae,Toshimitsu, Akio,Aoai, Toshiaki,Okano, Masaya

, p. 1533 - 1536 (2007/10/02)

Various cyclic ethers are prepared in good to excellent yields by treating diolefins with phenylselenenyl chloride in aqueous acetonitrile.This is the most facile method for organoselenium-induced formation of cyclic ethers from diolefins so far reported.

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