The Preparation and Structures of Several Cross??Conjugated Allenes (“Allenic Dendralenes”)
F Lehrich, H Hopf, J Grunenberg
Index: Lehrich, Friedhelm; Hopf, Henning; Grunenberg, Joerg European Journal of Organic Chemistry, 2011 , # 14 p. 2705 - 2718
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Citation Number: 10
Abstract
Abstract The cross-conjugated allenes (“allenic dendralenes”) 2-allenylbuta-1, 3-diene (2), 1, 1-divinylallene (3, prepared here as the methyl derivative 49), and 1, 1-diallenylethene (4) are prepared either by SN 2′-substitution processes from appropriate allenic or acetylenic precursors or by base-catalyzed isomerizations of propargylic substrates. Thermal elimination/isomerization routes to these highly unsaturated hydrocarbons require ...
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