The existence of a reversible 2-aza-Cope rearrangement in cyclizations of N-acyliminium ions derived from I'-and 2'-vinyl-N-(3'-butenyl)-5-hydroxy-2-pyrrolidinones is established. Substituent effects in the rearrangement of N-acyliminium ions of the 2-aza-1,5-hexadienyl type A have previously been
โฆ LIBER โฆ
N-acyliminium ions: detection of a hidden 2-aza-cope rearrangement
โ Scribed by David J. Hart; Yeun-Min Tsai
- Book ID
- 104241574
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- French
- Weight
- 184 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
A 2-aza-Cope rearrangement underlying the more typical reactions of N-acyl-Z-aza-_I______ 1,5-hexadienes has been detected using triethylsilane as an acyliminium ion trap.
Hetero-Cope rearrangements have previously been reported for substituted 2-aza-1,5-hexadienes 1 and their iminium ion counterparts, 2.
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