Abstract
In N-vinyl-2-isopropylpyrrole the isopropyl group is in a conformation with the CH3 group in an anti position to the vinyl group. On introducing a substituent at the 3 position of the ring the isopropyl group passes into a gauche and (or) a syn conformation, leading to an increase in the dihedral angle between the plane of the vinyl group and the pyrrole ring. In N-vinyl-2-cyclo-propylpyrrole the cyclopropyl group is 80% in the gauche form, which is attributed to the repulsion between the electrons of the σ-shells of the cyclopropyl and pyrrole fragments.
Original language | English |
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Pages (from-to) | 914-921 |
Number of pages | 8 |
Journal | Bulletin of the Academy of Sciences of the USSR Division of Chemical Science |
Volume | 40 |
Issue number | 5 |
DOIs | |
State | Published - 1 Jan 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- General Chemistry