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ChemInform Abstract: BORON COMPOUNDS, XXXVII. (Z E)‐ISOMERS OF DIETHYL(VINYLOXY)BORANES SUBSTITUTED AT THE VINYL GROUP FROM TRIETHYLBORANE AND VINYLCARBONYL COMPOUNDS

Wolfgang Fenzl, ROLAND KOESTER, HANS‐JOACHIM ZIMMERMANN

Abstract

Abstract Die 1,4‐Addition von Triäthylboran an die Vinylketone (I) führt zwischen ‐78 und +100° bei stark unterschiedlicher Stereoselektivität in Ausbeuten von 50‐85% zu den Z/E‐Isomeren (II) und (III) von an der Vinylgruppe substituierten Diäthyl‐(vinyloxy)‐boranen.

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Available abstract

Key concepts: Triethylborane, Boranes, Chemistry, Boron, Medicinal chemistry, Polymer chemistry, Organic chemistry, Catalysis