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Biscyclopropanation of C 70
Author(s) -
Bingel Carsten,
Schiffer Heinz
Publication year - 1995
Publication title -
liebigs annalen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0947-3440
DOI - 10.1002/jlac.1995199508212
Subject(s) - structural isomer , chemistry , cyclopropanation , preference , column chromatography , column (typography) , nuclear magnetic resonance spectroscopy , stereochemistry , chromatography , organic chemistry , catalysis , geometry , economics , microeconomics , mathematics , connection (principal bundle)
The biscyclopropanation of C 70 with bromomalonate anions shows a strong preference for three regioisomers, which can be separated by column chromatography. The structures of the three regioisomers were determined by 13 C‐NMR spectroscopy. The two cyclopropanation reactions take place on opposite hemispheres of C 70 .