Abstract
New thiophene-annulated 1,6-methano[10]annulene 1 and 2 were synthesized. The anisotropic deshielding effect from the π-electron system, based on the chemical shift values of the bridged methylene protons, is reduced compared with that of 3, and their crystal structures show clear bond alternation.
Original language | English |
---|---|
Pages (from-to) | 7311-7314 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 46 |
Issue number | 43 |
DOIs | |
State | Published - 2005/10/24 |
Keywords
- 1,6-Methano[10]annulene
- Ring current
- Thiophene
- X-ray crystallographic analysis
- o-Quinodimethane
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry