Pummerer-like reaction of selenium(IV)-dichlorides. Synthesis of α-chloro-α-phenylselenenylketones and α,α-dichloro-α-phenylselenenylketones
作者:Lars Engman、Joachim Persson、Ulf Tilstam
DOI:10.1016/s0040-4039(00)99093-2
日期:1989.1
Selenium(IV)-dichlorides , readily available by treatment of methyl ketones with phenylselenium trichloride or selenium tetrachloride, were treated in methylene chloride with pyridine to give α-chloroselenides in a Pummerer-like reaction. Sulfuryl chloride chlorination of these materials and repeated pyridine treatment similarly afforded α,α-dichloroselenides .
通过用三氯化苯基硒或四氯化硒处理甲基酮可轻松获得的二氯化硒(IV),在吡啶中在二氯甲烷中用吡啶处理,得到类似Pummerer反应的α-氯硒化物。对这些物质进行磺酰氯氯化和重复吡啶处理,类似地得到α,α-二氯硒化物。