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Studies on Stereoselective [2+2] Cycloadditions between N,N-Dialkylhydrazones and Ketenes

✍ Scribed by Eloísa Martín-Zamora; Ana Ferrete; José M. Llera; Jesús M. Muñoz; Rafael R. Pappalardo; Rosario Fernández; José M. Lassaletta

Book ID
102792994
Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
679 KB
Volume
10
Category
Article
ISSN
0947-6539

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Stereoselective, Temperature-Dependent [2+2] Cycloaddition of N,N-Dialkylhydrazones to N-Benzyl-N-(benzyloxycarbonyl)aminoketene
✍ Eugenia Marqués-López; Eloísa Martín-Zamora; Elena Díez; Rosario Fernández; José 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 325 KB

## Abstract The Staudinger‐like [2+2] cycloaddition of aliphatic hydrazones derived from (2__R__,5__R__)‐1‐amino‐2,5‐dimethylpyrrolidine to __N__‐benzyl‐__N__‐(benzyloxycarbonyl)aminoketene takes place to afford the corresponding β‐lactams in good yields when __i__Pr~2~EtN is used as the base. The