Monde, Kenji and Taniguchi, Tohru and Miura, Nobuaki and Charles Santhanaraju Vairappan and Suzuki, Minoru (2006) Absolute configurations of brominated sesquiterpenes determined by vibrational circular dichroism. In: 10th Internaional Conference on Circular Dichroism, August 2005, Sandestin, Florida.
Full text not available from this repository.Abstract
Two brominated sesquiterpenes, majapolene B (1) and acetylmajapolene B (2), isolated from the red algal genus Laurencia were investigated using vibrational circular dichroism (VCD). The ab initio theoretical VCD and IR calculations of 1 and 2 were performed by density functional theory (DFT) using the B3PW91/631G(d,p) basis set. The experimental VCD spectra and corresponding population-weighted theoretical VCD spectra were found to be in excellent agreement in CCl4 solution in the 1800-850 cm(-1) region, which allowed unambiguous determination of the absolute configurations of (-)-1 and (-)-2 as 7S,10S and 7S,10S, respectively.
| Item Type: | Conference or Workshop Item (UNSPECIFIED) |
|---|---|
| Keyword: | Vibrational circular dichroism, VCD, Brominated metabolites, DFT calculation, Marine natural products, Absolute configuration, Sesquiterpene |
| Subjects: | Q Science > QD Chemistry > QD1-999 Chemistry > QD450-801 Physical and theoretical chemistry |
| Department: | INSTITUTE > Borneo Marine Research Institute |
| Depositing User: | ADMIN ADMIN |
| Date Deposited: | 04 Oct 2011 17:54 |
| Last Modified: | 04 Oct 2011 17:54 |
| URI: | https://eprints.ums.edu.my/id/eprint/1106 |
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