๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

A simple model for substituent effects in cycloaddition reactions. I. 1,3-dipolar cycloadditions

โœ Scribed by Reiner Sustmann


Publisher
Elsevier Science
Year
1971
Tongue
French
Weight
227 KB
Volume
12
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.


๐Ÿ“œ SIMILAR VOLUMES


Substituent effects in the 1,3-dipolar c
โœ Pitlik, Jรกnos ;Csaba Jรกszberรฉnyi, J. ;Komรกromi, Istvรกn ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 346 KB

## Abstract The 2โ€methylenecephalosporins 1 undergo stereoselective 1,3โ€dipolar cycloaddition reactions with diazoalkanes to give exclusively the spirocyclopropylcephalosporins 3. Substituens at Cโ€3, Cโ€4 and Cโ€7 of the cephalosporin nucleus do not display a significant effect on the reactivity of t