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1,3-Dipolar cycloadditions of 2-thio-3-chloroacrylamides with diazoalkanes

✍ Scribed by Kissane, Marie; Lawrence, Simon E.; Maguire, Anita R.

Book ID
118229728
Publisher
Royal Society of Chemistry
Year
2010
Tongue
English
Weight
448 KB
Volume
8
Category
Article
ISSN
1477-0520

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✍ Jack E. Baldwin; Janos Pitlik πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 French βš– 215 KB

The 3-methylenecephams underwent I .3-dipolar cycloaddition reactions with diazomethane to give spiropyrazolinocephams in a completely stereo-and regioselective manner. Thermal breakdown of these I-pyrazolines led to spirocyclopropane and vinyl derivatives.