148173-02-8

Basic information

• Product Name: 5-Benzylseleno-2-methylpentanoic acid
• CAS NO: 148173-02-8
• Molecular Weight: 285.245
• Mol File: 148173-02-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-Benzylseleno-2-methylpentanoic acid(CAS DataBase Reference)
• NIST Chemistry Reference: 5-Benzylseleno-2-methylpentanoic acid(148173-02-8)
• EPA Substance Registry System: 5-Benzylseleno-2-methylpentanoic acid(148173-02-8)

Safety Data

• Hazardous Substances Data: 148173-02-8(Hazardous Substances Data)

Upstream product

• 148173-00-6 tert-Butyl 5-bromo-2-methylpentanoate 
• 17142-61-9 5-Bromo-2-methylpentanoic acid 
• 1482-82-2 dibenzyl diselenide 

Relevant articles and documents

Homolytic Substitution at Selenium: Ring Closure of ω-(Benzylseleno)alkyl Radicals

The ring closure of a series of ω-(benzylseleno)alkyl radicals (1) has been studied.Thiohydroxamic esters derived from ω-(benzylseleno)alkanoic acids decompose smoothly, upon irradiation, with the loss of carbon dioxide to afford 5- and 6- membered selenium-containing rings in 78-95 percent yield.The thiohydroxamic ester derived from 7-(benzylseleno)heptanoic acid affords the 7-membered heterocycle, selenopane in approximately 50 percent yield.These reactions presumably involve intramolecular free radical homolytic substitution at selenium and appear to proceed readily for both primary and secondary carbon-centered radicals.The 5-(benzylseleno)hex-2-yl radical (1f) appears to ring close without stereoselectivity, to give a 1:1 mixture of cis- and trans-2,4-dimethyltetrahydroselenophene, a finding in keeping with molecular mechanics (MM2) calculations. Key Words: Homolytic Substitution; Selenium; Radical Ring Closure; Stereoselectivity; Thiohydroxamic Ester