Tetrahedron Letters

Pummerer-like reaction of selenium (IV)-dichlorides. Synthesis of α-chloro-α-phenylselenenylketones and α, α-dichloro-α-phenylselenenylketones

L Engman, J Persson, U Tilstam

文献索引：Engman, Lars; Persson, Joachim; Tilstam, Ulf Tetrahedron Letters, 1989 , vol. 30, # 20 p. 2665 - 2668

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被引用次数: 16

摘要

Selenium (W)-dichlorides 1, readily available by treatment of methyl ketones with phenylselenium trichloride or selenium tetrachloride, were treated in methylene chloride with pyridine to give a-chloroselenides 2 in a Pummerer-like reaction. Sulfuryl chloride chlorination of these materials and repeated pyridine treatment similarly afforded a, a- dichloroselenides 4.