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Reaction of diazoalkanes with unsaturated compounds. 10. 1,3-Dipolar cycloaddition of diazocyclopropane to strained cycloalkenes

✍ Scribed by Yu. V. Tomilov; E. V. Shulishov; O. M. Nefedov

Book ID
112448876
Publisher
Springer
Year
1991
Tongue
English
Weight
429 KB
Volume
40
Category
Article
ISSN
1573-9171

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Substituent effects in the 1,3-dipolar cycloaddition reactions of 2-methylenecephalosporins with diazoalkanes
✍ Pitlik, János ;Csaba Jászberényi, J. ;Komáromi, István 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 346 KB

## 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