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Solvent stereoselectivities in hydrogen atom transfer to the α-phenyl-β-methylvinyl radical

✍ Scribed by Lawrence A. Singer; Janet Chen

Publisher
Elsevier Science
Year
1969
Tongue
French
Weight
299 KB
Volume
10
Category
Article
ISSN
0040-4039

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✦ Synopsis

Recently there has been considerable interest in the stereochemical capabilities of vinyl radicals (l-lo). One approach to this subject is the stereospecific formation of vinyl radicals from isomeric precursors followed by an analysis of the product mixture (4 and 5) which results from scavenging of the isomeric, bent, radical intermediates (1 and --2) or single, linear, radical intermediate (3). We (1.2) and Eampmeier and co-workers (3) successfully have used peresters as the vinyl radical precursors.

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X-ray structure data: triclinic, spacegroup Pi, (I = 12.167(2) A, 6 = 12.921(4) A, c = 15.394(4) .&, a = 314.41(2)". = 97.641(15)", y = 102,17(2)", V = 2087.4 A,, Z = 1, data collected 4.0' 5 28 5 45.0". 4179 unique reflections with F > 6.0u(F), R = 0.046. R, = 0.059. Further details of the crystal