thino Posted March 5, 2014 Share Posted March 5, 2014 As the reaction shown in the figure.I understand that acetals are quite stable unless in an acidic solution, so this reaction looks very strange to me. I cannot think of any other acetal reactions beside acidic hydrolysis... Link to comment Share on other sites More sharing options...
rktpro Posted March 12, 2014 Share Posted March 12, 2014 Bewildering. I wonder how the reagent exists: 3 lone pair containing atoms on tetrahedral carbon. I can't think of reaction mechanism. Someone else will enlighten us. Link to comment Share on other sites More sharing options...
hypervalent_iodine Posted March 12, 2014 Share Posted March 12, 2014 I had a look at this when it was posted and couldn't make heads or tails of it either! I might sit down and have a better look when I have time. Link to comment Share on other sites More sharing options...
John Cuthber Posted March 12, 2014 Share Posted March 12, 2014 (edited) I'm pretty sure that DMF DMA is a well known reagent. For example, http://www.mn-net.com/tabid/10229/default.aspx and that material is the next homologue. But that seems a rather odd reaction. http://en.wikipedia.org/wiki/Claisen_rearrangement#Eschenmoser.E2.80.93Claisen_rearrangement Edited March 12, 2014 by John Cuthber 1 Link to comment Share on other sites More sharing options...
crimsonpetal Posted September 4, 2014 Share Posted September 4, 2014 This reactions is one of variations of Claisen Rearrangement, called Eschenmoser–Claisen rearrangement. The Eschenmoser–Claisen rearrangement proceeds from an allylic alcohol to a γ,δ-unsaturated amide, and was developed by Albert Eschenmoser in 1964 You can see the mechanism at http://en.wikipedia.org/wiki/Claisen_rearrangement Link to comment Share on other sites More sharing options...
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