G. Kabalka, R. Pace
Jan 29, 1993
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0
Influential Citations
2
Citations
Journal
Tetrahedron Letters
Abstract
Abstract The selective formation of allylboronic esters via the allylation of trialkylborates using allylmagnesium bromide was found to be temperature dependent. At −78°C, allylmagnesium bromide reacts cleanly with triisopropylborate to provide allyldiisopropoxyborane. The initially formed bromomagnesium allyl triisopropoxyboronate precipates at this temperature prohibiting the formation of more highly allylated products.