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Should compound 13 (in both representations) have the double-bond to nitrogen still present? My understanding is that the nucleophilic addition generates the amine at that point.
— Preceding unsigned comment added by Mdlevin ( talk • contribs) 04:01, 5 January 2011 (UTC)
- No worries , the laws of physics have not changed. The error in the image has been corrected. Thanks for spotting it. V8rik ( talk) 18:29, 5 January 2011 (UTC)
How is this reaction a cycloaddition? There is no concerted reaction and only one bond is formed in the first step. I think this is merely a normal Mannich-type reaction (with an imine instead of an iminium ion) followed by an acyl substitution. Maybe someone confused cycloaddition with ring-closure/ formation? 80.145.241.182 ( talk) 07:31, 6 June 2012 (UTC)
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| This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
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Should compound 13 (in both representations) have the double-bond to nitrogen still present? My understanding is that the nucleophilic addition generates the amine at that point.
— Preceding unsigned comment added by Mdlevin ( talk • contribs) 04:01, 5 January 2011 (UTC)
- No worries , the laws of physics have not changed. The error in the image has been corrected. Thanks for spotting it. V8rik ( talk) 18:29, 5 January 2011 (UTC)
How is this reaction a cycloaddition? There is no concerted reaction and only one bond is formed in the first step. I think this is merely a normal Mannich-type reaction (with an imine instead of an iminium ion) followed by an acyl substitution. Maybe someone confused cycloaddition with ring-closure/ formation? 80.145.241.182 ( talk) 07:31, 6 June 2012 (UTC)