Abstract
(E)‐β‐Iodoenamides and (E)‐β‐iodoenimides can be easily obtained from N‐vinyl derivatives (N‐vinylamides and N‐vinylimides) by stereoselective ruthenium‐catalysed silylative coupling with vinyltrimethylsilane (Marciniec coupling) and subsequent stereospecific silicon–iodine exchange. Bromodesilylation of (E)‐β‐silylenimides affords (E)‐β‐bromoenimides, while the analogous reactions involving (E)‐β‐silylenamides lead to decomposition of substrates. N‐Halosuccinimides have been found as the most effective halogenating agents in the desilylation step under mild conditions. The ruthenium‐catalysed silylation/halodesilylation sequence can be performed in a one‐pot procedure. Copyright © 2015 John Wiley & Sons, Ltd.
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