## Abstract The 2‐methylenecephalosporins 1 undergo stereoselective 1,3‐dipolar cycloaddition reactions with diazoalkanes to give exclusively the spirocyclopropylcephalosporins 3. Substituens at C‐3, C‐4 and C‐7 of the cephalosporin nucleus do not display a significant effect on the reactivity of t
✦ LIBER ✦
Regioselectivity in Iron-Catalyzed [2+2+1] Cycloadditions: A DFT Investigation of Substituent Effects in 1,4-Diazabutadienes
✍ Scribed by Wolfgang Imhof; Ernst Anders
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 580 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0947-6539
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