Synthese und Ringöffnung von hochsubstituierten 1, 1??Dichlor??und 1??Brom??1??fluorcyclopropanen

…, D Reinhard, P Weyerstahl

Index: Anke, Lutz; Reinhard, Detlef; Weyerstahl, Peter Liebigs Annalen der Chemie, 1981 , # 4 p. 591 - 602

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Abstract

Abstract Die tri-und tetrasubstituierten Olefine 1, 2, 4, 7-15 und 19 ergeben bei der CCl 2- Addition nach der Makosza-Methode in sehr guten Ausbeuten glatt die jeweiligen Dichlorcyclopropane 22, 23, 25, 26a-30a und 33a-37 a, während die sterisch stark gehinderten Olefine 5, 6 und 21 keine Reaktion mehr zeigen. In einem schmalen Grenzbereich findet bei den dort erforderlichen drastischen Reaktionsbedingungen ( ...

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