Tetrahedron p. 2273 - 2282 (1988)
Update date:2022-08-04
Topics:
Tiecco, Marcello
Testaferri, Lorenzo
Tingoli, Marco
Chianelli, Donatella
Bartoli, Donatella
The reaction of vinyl halides with phenylselenenyl chloride in alcohols affords α-alkoxy acetals and diphenyl diselenide which can be oxidized to PhSe cations by nitrate or persulfate anions.The reaction can be carried out with catalytic amounts of PhSeCl or PhSeSePh.The reaction proceeds through the formation of the methoxyselenenylation product which then suffers solvolysis.Under controlled conditions, the 1-phenyl-1-methoxy-2-bromo-2-phenylselenenyl ethane was isolated from the reaction of β-bromostyrene and PhSeCl in methanol.Several deselenenylation reactions of this α-halogenoselenide are reported.
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